feat(locale): add Kazakh locale

[IraErshova]

Add Kazakh locale

related to #5575

PR Checklist

Before creating new PR, please take a look at checklist below to make sure that you've done everything that needs to be done before we can merge it.

• read and followed the CONTRIBUTING.md guide.
• built and tested the changes locally.
• added/updated tests.
• added/updated API documentation.
• added/updated demos.

[codecov]

Codecov Report

Merging #5685 into development will not change coverage.
The diff coverage is 100%.

@@             Coverage Diff              @@
##           development    #5685   +/-   ##
============================================
  Coverage        73.71%   73.71%           
============================================
  Files              323      323           
  Lines            11606    11606           
  Branches          2471     2471           
============================================
  Hits              8555     8555           
+ Misses            1958     1957    -1     
- Partials          1093     1094    +1

Impacted Files	Coverage Δ
src/datepicker/bs-datepicker-inline.component.ts	67.94% <100%> (ø)	⬆️
.../datepicker/bs-daterangepicker-inline.component.ts	62.35% <100%> (ø)	⬆️
src/datepicker/utils/bs-calendar-utils.ts	78.78% <0%> (-6.07%)	⬇️
src/datepicker/engine/flag-days-calendar.ts	77.14% <0%> (-5.72%)	⬇️
src/datepicker/bs-datepicker.component.ts	65.51% <0%> (-1.73%)	⬇️
src/datepicker/reducer/bs-datepicker.effects.ts	75.55% <0%> (+1.48%)	⬆️
...ker/themes/bs/bs-months-calendar-view.component.ts	68.75% <0%> (+12.5%)	⬆️

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[dmitry-zhemchugov]

Ready to merge