* Create pre-commit with ESLint

* add vue-eslint-parser

* Add prop-name-casing and script-indent to the eslint rule.

* Update Javascript and Vue files with the proper style

* Comment out ESlint pre-commit first to udpate styles

* Complete audio data integration:
* Add num channels, sample width, sample rate as params
* Generate audio file with proper params

* clang format

* Use ESlint to format the Javascript and Vue files.
Strongly recommended rules applied.

* Add google format package

* Audio integration to front end
* Add flask end point
* Read and decode audio data

* refract a typo

* fix clang format

* Make the frontend to fetch the data from the flask server.

* Provide loading animation.

* Fixed format style
Fix the issue where the display label not working.

* Provide a 2D 3D switcher.
Display the chart in 3D.

* Include PCA method to do dimension reduction

* Fix the style.

* Fix typo
Use === to compare type as well.

* Include the embedding frontend work, currenlty using harded data

* Remove a ChartPage in embeddings
Embedding chart now use the mock data from the mock server.

* Some code refactoring.

* Create Audio Feature in SDK
* Add apis to record audio in SDK
* Add corresponding apis in pybind, storage.py, sdk.h
* Implement reservoir sampling when collecting audio samples

* fix clang format and update based on comment

* use int_8 for reading records and convert string directly from vector

* refract isSampleTaken to IndexOfSampleTaken

* fix clang format again

* Add manual Save feature.

* Fix the incorrect style

* Add feature to record Text

* Create a simple UI for text preview.

* Connect frontend with backend text data

* Move a constant from parameter to the body.
Remove test log

* Format image date string.
Format image slider.

* Fix the incorrect date parse.

* Add manual Save feature.

* Fix the incorrect style

* Add feature to record Text

* Fix the incorrect test cases

* Move the doc related commands to a script.

* Add X to the deploy_docs_on_travis.sh permission

* Add manual Save feature.

* Fix the incorrect style

* Adjust the sync_cycle automatically.

* Change the multiplier type to double.

* Adjust the sync_period.

* Fix comment.

* Add the pre-commit

* Run pre-commit with other files.

Fix issues when smoothing value set to 0, it goes back to default 0.6. Tooltip sorting does not work because string mismatching. (#323)

* Update the version number
Update the doc to include Vue
Update the doc to give more details on the sync_cycle
Update the doc to include python 3

* Update the LogWriter constructor doc.

* Update the package copy directory.

* Update the version to 0.0.2 (implying beta now)

* Update the vdl_create_scratch_log to python 3 as well.

Let's reduce the complexity of the documentation for now. and maybe split the #define function in the future.

-Add new toolbar icons and reimplement functions instead of using Echart built in icons
-Remove show data link option, instead add a collapse menu to select data download from each chart
-Only show toolbar icons when hover over card

* Only write the modified tablets to file system.
Move some functions definitions from headers to cc files.

* Persist the data in the destructor
Use unordered_set first.

* Use -1 for the unknown.