refactor!: do not copy JS lib to platform project

[raphinesse]

Motivation and Context

Finally, the moment we've all been waiting for! 🎉 😉

This PR does away with the questionable practice of copying the entire JS lib of cordova-android into each generated platform project – which had caused several issues and complications in the past.

Description

• create: do not copy our JS lib (or node_modules) to platform project
• Move files around
  • bin/templates/cordova/lib/ to lib/
  • bin/templates/cordova/Api.js to lib/
  • bin/lib/create.js to lib/
  • bin/templates/cordova/lib/plugin-build.gradle to lib/builders

After these changes, the cordova/ folder of a generated project only contains the bare minimum to maintain compatibility with existing cordova CLI versions (plus defaults.xml which IMHO should be moved in another PR). All of the remaining JS files in that folder require their dependencies via the cordova-android module, so that needs to be resolvable somehow (which is the case for a platform project generated by the regular CLI workflow).

Testing

• existing tests pass
• I successfully created and built a cordova-android project using cordova@10

[codecov-commenter]

Codecov Report

Merging #1269 (98cbe0c) into master (f6d1dee) will decrease coverage by 0.06%.
The diff coverage is 68.00%.

@@            Coverage Diff             @@
##           master    #1269      +/-   ##
==========================================
- Coverage   73.27%   73.20%   -0.07%     
==========================================
  Files          21       21              
  Lines        1650     1646       -4     
==========================================
- Hits         1209     1205       -4     
  Misses        441      441              

Impacted Files	Coverage Δ
lib/Adb.js	100.00% <ø> (ø)
lib/AndroidManifest.js	100.00% <ø> (ø)
lib/AndroidProject.js	61.11% <ø> (ø)
lib/PackageType.js	100.00% <ø> (ø)
lib/android_sdk.js	96.00% <ø> (ø)
lib/build.js	39.60% <ø> (ø)
lib/builders/builders.js	100.00% <ø> (ø)
lib/check_reqs.js	70.37% <ø> (ø)
lib/config/GradlePropertiesParser.js	86.27% <ø> (ø)
lib/emulator.js	98.43% <ø> (ø)
... and 11 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f6d1dee...98cbe0c. Read the comment docs.

[erisu]

• The changes LGTM
• I confirmed that the tests are passing.
• I created a new cordova app & added the platform.
• I built the default project