fix(types): Add has|usingPlugin to typedef by adding stubs which are removed from builds

[mister-ben]

Description

tsc doesn't understand mixins and ignores jsdoc not followed by code. The jsdoc for the plugin methods usingPlugin() and hasPlugin() in Player are being ignored. To get them included in type outputs we need to have otherwise unnecessary stubs codes, as we already have for on() etc, which adds unnecessary, even if a small amount of, code to the outputs.

Specific Changes proposed

• Slight refactor of Player to include those stubs.
• Adds a rollup plugin to delete lines between certain comments, so those stubs are deleted from the outputs.
• Applies those comments to the on() etc stubs in Component and the new plugin stubs in Player.

Any code surrounded by these comments, and the comments themselves, is deleted from the dist and test builds:

/* start-delete-from-build */
  console.log('hi');
/* start-delete-from-build */

Compared to main, video.min.js is 53 bytes smaller.

Requirements Checklist

• Feature implemented / Bug fixed
• If necessary, more likely in a feature request than a bug fix
  • Change has been verified in an actual browser (Chrome, Firefox, IE)
  • Unit Tests updated or fixed
  • Docs/guides updated
  • Example created (starter template on JSBin)
  • Has no DOM changes which impact accessiblilty or trigger warnings (e.g. Chrome issues tab)
  • Has no changes to JSDoc which cause npm run docs:api to error
• Reviewed by Two Core Contributors

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.78%. Comparing base (57c27f8) to head (0336001).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8811      +/-   ##
==========================================
+ Coverage   83.12%   83.78%   +0.66%     
==========================================
  Files         120      120              
  Lines        8052     8047       -5     
  Branches     1931     1931              
==========================================
+ Hits         6693     6742      +49     
+ Misses       1359     1305      -54     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[misteroneill]

Not a huge fan of needing to do this, but if it's the only thing that works...