feat(locale): add en_HK locale

[matthewmayer]

Adds a locale for English (Hong Kong)

A few points of note:

• Hong Kong has no ZIP codes
• Override surnames but fall back to en first names
• Street names are generated with a mix of English and Cantonese parts

[codecov]

Codecov Report

Merging #2083 (437ef21) into next (76c3080) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #2083      +/-   ##
==========================================
- Coverage   99.59%   99.59%   -0.01%     
==========================================
  Files        2541     2567      +26     
  Lines      242800   243322     +522     
  Branches     1249     1246       -3     
==========================================
+ Hits       241827   242325     +498     
- Misses        946      970      +24     
  Partials       27       27              

Impacted Files	Coverage Δ
src/locale/en_HK.ts	100.00% <100.00%> (ø)
src/locale/index.ts	100.00% <100.00%> (ø)
src/locales/en_HK/company/index.ts	100.00% <100.00%> (ø)
src/locales/en_HK/company/suffix.ts	100.00% <100.00%> (ø)
src/locales/en_HK/index.ts	100.00% <100.00%> (ø)
src/locales/en_HK/internet/domain_suffix.ts	100.00% <100.00%> (ø)
src/locales/en_HK/internet/index.ts	100.00% <100.00%> (ø)
src/locales/en_HK/location/building_number.ts	100.00% <100.00%> (ø)
src/locales/en_HK/location/city.ts	100.00% <100.00%> (ø)
src/locales/en_HK/location/default_country.ts	100.00% <100.00%> (ø)
... and 18 more

... and 1 file with indirect coverage changes

[ST-DDT]

Note to self: Update migration guide to use post codes: #2004 (comment) once this is merged.

[Shinigami92]

already give my approval, but looks like I need to re-approve again later

[ST-DDT]

Note to self: Update migration guide to use post codes: #2004 (comment) once this is merged.

@matthewmayer update docs

My original intention was to do that in a separate PR, but this works as well. Thanks for your help! 👍