feat(datepicker): added date range picker config

[valorkin]

PR Checklist

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• 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 #3501 into development will increase coverage by <.01%.
The diff coverage is 63.63%.

@@               Coverage Diff               @@
##           development    #3501      +/-   ##
===============================================
+ Coverage        72.27%   72.27%   +<.01%     
===============================================
  Files              250      251       +1     
  Lines             8104     8112       +8     
  Branches          1538     1538              
===============================================
+ Hits              5857     5863       +6     
- Misses            1821     1823       +2     
  Partials           426      426

Impacted Files	Coverage Δ
src/datepicker/bs-datepicker.config.ts	100% <ø> (ø)	⬆️
...ker/themes/bs/bs-datepicker-container.component.ts	38.7% <ø> (ø)	⬆️
src/datepicker/datepicker.module.ts	92.85% <50%> (+0.54%)	⬆️
src/datepicker/bs-daterangepicker.component.ts	35.52% <66.66%> (+0.85%)	⬆️
src/datepicker/bs-daterangepicker.config.ts	66.66% <66.66%> (ø)

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