feat: dynamic definitions tree

[ST-DDT]

Instead of making only our definitions/locale data accessible via faker.definitions, this PR allows devs to access any data, that are added to the locale itself.

Or in other words:
Previously faker.definitions.business returned undefined even though faker.locales.en.buisness is defined.

[codecov]

Codecov Report

Merging #822 (0cd2439) into main (d94159f) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 0cd2439 differs from pull request most recent head 594b216. Consider uploading reports for the commit 594b216 to get more accurate results

@@           Coverage Diff           @@
##             main     #822   +/-   ##
=======================================
  Coverage   99.34%   99.34%           
=======================================
  Files        1921     1921           
  Lines      179170   179183   +13     
  Branches      895      898    +3     
=======================================
+ Hits       177993   178006   +13     
  Misses       1121     1121           
  Partials       56       56           

Impacted Files	Coverage Δ
src/definitions/definitions.ts	100.00% <100.00%> (ø)
src/faker.ts	100.00% <100.00%> (ø)

[ST-DDT]

Partially addresses #823 .

[Shinigami92]

To really understand what's going on in initDefinitions I would like to have a screenshare after my vacation with you, where I go through the code and you explain what I don't understand 🙂

[Shinigami92]

Tested it out locally with the new tests but without the changes in src
To me this is not a feature but a bugfix!