removed sound manager apis and added create api doc for renderer and capturer

Signed-off-by: NGeevarghese V K <geevarghese.v.k1@huawei.com>

en/application-dev/media/sound-manager.md

-# SoundManager Development
-
-## **Summary**
-This guide will show you how to use SoundManager to save and retrieve the ringtone, alarm and notification uris.
-Also the document explains how to use ringtone player APIs to play a ringtone uri.
-
-## **SoundManager Framework**
-The SoundManager interface consists of APIs which are used to save and retrieve ringtone, alarm and notification uris.
-Other APIs required for ringtone playback is also provided by SoundManager. All the uris will be saved in persistent memory of the device.
-
-Please see [**SystemSoundManager**](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-audio.md##systemsoundmanager) for the list of APIs supported by SoundManager.
-
-
-## **Usage**
-- Here's an example of how to use SoundManager to save and retrieve alarm uri
-1. Use **getSystemSoundManager** to get an SoundManager instance.\
-   This object can be used to set and get alarm uri
-   ```
-    const systemSoundManager = audio.getSystemSoundManager();
-   ```
-
-2. Use **setSystemAlarmUri** to save system alarm uri\
-   Application should provide the application *context*, the *uri* to be saved while using this API.
-
-   ```
-    systemSoundManager.setSystemAlarmUri(context, '/data/media/alarm.wav', (err)=> {
-        if (err) {
-            console.error('Failed to setSystemAlarmUri');
-        } else {
-            console.log('Callback invoked to indicate a successful system alarm uri setting.');
-        }
-    })
-   ```
-
-3. Use **getSystemAlarmUri** to fetch system alarm uri\
-   Application should provide the application *context* while using this API.
-
-   ```
-    systemSoundManager.getSystemAlarmUri(context, (err, alarmUri)=>{
-        if (err) {
-            console.err('getSystemAlarmUri failed');
-        } else {
-            console.log('getSystemAlarmUri success: ' + alarmUri);
-        }
-    })
-   ```
-
-
-- Here's another example of how to use SoundManager for ringtone uri playback
-1. Use **getSystemSoundManager** to get an SoundManager instance.
-   ```
-    const systemSoundManager = audio.getSystemSoundManager();
-   ```
-
-2. Use **setSystemRingtoneUri** to set system ringtone uri\
-   Application should provide the application *context*, *uri* to be saved and the [*RingtoneType*](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-audio.md#ringtonetype8) while using this API.
-
-   ```
-    systemSoundManager.setSystemRingtoneUri(context, '/data/media/ringtone_sim1.wav',
-        audio.RingtoneType.RINGTONE_TYPE_DEFAULT, (err)=> {
-        if (err) {
-            console.error('Failed to setSystemRingtoneUri');
-        } else {
-            console.log('Callback invoked to indicate a successful system ringtone uri setting.');
-        }
-    })
-   ```
-
-3. Use **getSystemRingtonePlayer** to get ringtone player instance\
-   Application should provide the application *context* and the [*RingtoneType*](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-audio.md#RingtoneType8) while using this api.
-
-    ```
-    systemSoundManager.getSystemRingtonePlayer(null, audio.RingtoneType.RINGTONE_TYPE_DEFAULT, (err, ringtonePlayer)=>{
-        if (err) {
-            console.err('getSystemRingtonePlayer failed');
-        } else {
-            console.log('getSystemRingtonePlayer success: ');
-        }
-    });
-    ```
-
-4. Use **configure** api to configure the ringtone player
-   [*RingtoneOptions*](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-audio.md#ringtoneoptions8) should be provided while using this api.
-
-    ```
-    let ringtoneOptions = {
-        volume: 1,
-        loop: false
-    };
-
-    ringtonePlayer.configure(ringtoneOptions, (err)=> {
-        if (err) {
-            console.error('Failed to configure ringtone options');
-        } else {
-            console.log('Callback invoked to indicate a successful ringtone options configuration.');
-        }
-    });
-    ```
-
-5. Use **start** api to start playing the ringtone\
-   *Note*: If *loop* was true in configure, the ringtone will continue to play until its stopped explicity.
-    ```
-    ringtonePlayer.start((err)=> {
-        if (err) {
-            console.error('Failed to start playing ringtone');
-        } else {
-            console.log('Ringtone start playing successfully.');
-        }
-    });
-    ```
-
-6. Use **stop** api to stop the ringtone while play is in progress
-    ```
-    ringtonePlayer.stop((err)=> {
-        if (err) {
-            console.error('Failed to stop playing ringtone');
-        } else {
-            console.log('Ringtone stop playing successfully.');
-        }
-    });
-    ```
-
-7. Use **release** api to release the ringtone player resources
-    ```
-    ringtonePlayer.release((err)=> {
-        if (err) {
-            console.error('Failed to release ringtone player resource');
-        } else {
-            console.log('Release ringtone player resource successfully.');
-        }
-    });
-    ```
-
-## **Other APIs**
-ringtonePlayer object provides few more apis like;
-
-1. **state**
-   This is a readonly variable, which will contain the current state of the ringtone player.
-   ```
-    let playerState = ringtonePlayer.state
-    ```
-
-2. **getTitle**
-   This api will return the title of the ringtone uri from the file metadata
-
-    ```
-    ringtonePlayer.getTitle((err, title)=>{
-        if (err) {
-            console.err('getTitle failed');
-        } else {
-            console.log('getTitle success: ' + title);
-        }
-    });
-    ```
-
-3. **getAudioRendererInfo**
-   This api will return the audio renderer information
-    ```
-    ringtonePlayer.getAudioRendererInfo((err, rendererInfo)=>{
-        if (err) {
-            console.err('getAudioRendererInfo failed');
-        } else {
-            console.log('getAudioRendererInfo success');
-        }
-    });
-    ```