Make JSDoc @description tags available on more reflection classes and types

[jefflaporte]

Summary of changes

Expands support for jsDoc @description info, on classes, methods, functions, enums, interfaces, and type aliases. This was needed for an unreleased project I'm working on.

Changes are in type/src/reflection/ and type-compiler/src/compiler.ts.
Tests have been added in packages/type/tests/jsdoc.spec.ts.

Thanks to the Deepkit team for the amazing project!

Relinquishment of Rights

Please mark following checkbox to confirm that you relinquish all rights of your changes:

• I waive and relinquish all rights regarding this changes (including code, text, and images) to Deepkit UG (limited), Germany. This changes (including code, text, and images) are under MIT license without name attribution, copyright notice, and permission notice requirement.

[codecov-commenter]

Codecov Report

Merging #463 (b97b867) into master (3fd48ea) will increase coverage by 0.01%.
The diff coverage is 66.66%.

❗ Current head b97b867 differs from pull request most recent head dbab73e. Consider uploading reports for the commit dbab73e to get more accurate results

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@@            Coverage Diff             @@
##           master     #463      +/-   ##
==========================================
+ Coverage   78.37%   78.38%   +0.01%     
==========================================
  Files         173      173              
  Lines       18538    18547       +9     
  Branches     4843     4845       +2     
==========================================
+ Hits        14529    14538       +9     
  Misses       4009     4009              

Impacted Files	Coverage Δ
packages/type/src/reflection/type.ts	83.28% <ø> (+0.27%)	⬆️
packages/type/src/reflection/reflection.ts	69.42% <66.66%> (-0.04%)	⬇️

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[marcj]

Thanks!