Decouple setup playback process from the load source process

[joaopaulovieira]

Summary

The code that creates an instance of HLS.JS also parses the manifest automatically. To avoid this behavior when is necessary, this PR creates a new configuration (options.hlsPlayback.preload) for parsing happens only after a play command is received.

Also, configure Jest to avoid noise logs on test output.

Changes

• Create new options scope options.hlsPlayback;
• Create new option options.hlsPlayback.preload;
• Add docs about the new options;
• Create defaultOptions getter representing options.hlsPlayback initial values;
• Merge received options.hlsPlayback with defaultOptions;
• Create new flag _manifestParsed;
• Listen MANIFEST_PARSED HLS.JS event to set value true on _manifestParsed flag;
• Set false on _manifestParsed flag when _setup method is called;
• Load source at first play when it's not load at _setup process;
• Configure Jest to run with --silent flag;
• Delete test case covering logic from HTML5Video playback (it's already covered on @clappr/core);

How to test

With options.hlsPlayback.preload as false:

• Attatch Clappr with HlsjsPlayback;
• Check the network tab on your browser developer tools;
  • No one manifest (.m3u8) or video chunk (.ts) should have be download.

---

With options.hlsPlayback.preload as true:

• Attatch Clappr with HlsjsPlayback;
• Check the network tab on your browser developer tools;
  • The manifest (.m3u8) and video chunks (.ts) should have be download.

A picture/video tells a thousand words

Before this PR

Screen.Recording.2021-01-31.at.15.54.22.mov

After this PR

With options.hlsPlayback.preload as true:

Screen.Recording.2021-01-31.at.15.56.58.mov

---

With options.hlsPlayback.preload as false:

Screen.Recording.2021-01-31.at.15.58.12.mov

[hound]

Some files could not be reviewed due to errors:

�[31mERROR�[0m: Can't find config file: eslint:recommended

�[31mERROR�[0m: Can't find config file: eslint:recommended

[hound]

Some files could not be reviewed due to errors:

�[31mERROR�[0m: Can't find config file: eslint:recommended

�[31mERROR�[0m: Can't find config file: eslint:recommended

[jhonatangcavalcanti]

what about naming it as preload?

[joaopaulovieira]

Done in b90c5ae