1.remove redundant headfile in kernel, such as:
  compiler.h;debug.h;automount.h;inode.h;syslog.h;net.h;
2.split fs.h to file.h and driver.h
3.move vnode.h and path_cache.h to vfs/include
4.remove redundant interface and defines

close: #I3RTNR
Signed-off-by: Nmucor <mucorwang@gmail.com>

1.修改:
compat/posix/src/time.c文件中clock_gettime接口ESRCH返回值为EINVAL.
2.影响:
无.

fix #I3OUHI
Signed-off-by: Nteamol <28105285@qq.com>

fix typo destroy

close https://gitee.com/openharmony/kernel_liteos_a/issues/I3RR17Signed-off-by: Kenneth <459864689@qq.com>

support turn off as many features as possible.
current only libc and posix and bsd can not be turned off.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I1e97570c67593207a56dc11f357eca4b4a018bfd

【背景】当前timer_create接口不支持以SIGEV_THREAD的方式创建多个定时器

【修改方案】
1、内核timer_create接口在创建software timers相应的线程时，使用线程
taskCB所携带的信息识别各个线程的信号并依据该信息分别派发出信号。
2、关于用户任务操作许可验证的修改，现在允许同一用户线程向其自身派发信
号，软件定时器计时结束，向用户态发送相应的信号，完成用户态线程的回调。

【影响】
对现有的产品暂无影响。

re #I3SRFI
Signed-off-by: yansira <yansira@hotmail.com>
Change-Id: Ia23f5ef01975bf867dd7f5db797a30c264c50501

close: #I3I768

Change-Id: I4f801df4abe1a9afdf43391c28276e96a5e81513

Change-Id: I260e47c895ced01e033ef8a824744e574887c9f5

close: #I3R70T
Change-Id: Idec4ba2f692cf357368c2fa437dddeba945f2e07

Change-Id: I391eccfa8591feb95dcb5b74fba3788f63b981bf

correct some typos in los_task.c and other files

close https://gitee.com/openharmony/kernel_liteos_a/issues/I3QDB8

Change-Id: Iecd1a896f92522ecc75d099c23761969a83b1d29

fix:the setitimer signals the process to be locked at a fixed time. There is a static problem.

Change-Id: I26f12289c4b13b0fd70bf0aad30507270e0ee421

Change-Id: I052d930d54e63179b17b77f02c107a015f3cfc3f

Change-Id: I8d2e9f96e86f4130474da9898791240b5d42328e

Description:修复setitimer多核静态问题
Sig:kernel
Feature or Bugfix:Bugfix
Binary Source:No

Change-Id: I43661908d0d5248f70acb16ea95dc76fcdb6a84e

Reviewed-by:liulei, lihao, likailong

Change-Id: Ibacdda2ccbbc991ac9732f2ad09bdb98195203b3

Change-Id: Ia6c1f6302407a707b3ec9b805f4c92d8a7970b86