Auto import reflect-metadata module

[notaphplover]

Description

• Updated entrypoint to auto import reflect-metadata.
• Updated docs.
• Updated tsconfig with modern NodeJS resolution.
• Removed unused ancient amd and es6 builds.
• Simplified CI.

Related Issue

Fixes #1189.

How Has This Been Tested?

• Test run successfully.

Types of changes

• Updated docs / Refactor code / Added a tests case (non-breaking change)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the changelog.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.61%. Comparing base (c68e60d) to head (e21b60d).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1648      +/-   ##
==========================================
+ Coverage   99.53%   99.61%   +0.08%     
==========================================
  Files          50       50              
  Lines        1503     1307     -196     
  Branches      192      180      -12     
==========================================
- Hits         1496     1302     -194     
  Misses          4        4              
+ Partials        3        1       -2     

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