feat(datepicker): datepicker and daterangepicker allow to select a day from other months

[mc-suchecki]

fixes #4485

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[mc-suchecki]

@Domainv @valorkin can you give me some feedback on this? I think I should hide this feature behind a flag in Datepicker config, do you agree? Do you have some name suggestions?

I'll add unit tests, docs and examples after the rest of the code is accepted. :)

[codecov]

Codecov Report

Merging #4568 into development will increase coverage by 0.02%.
The diff coverage is 0%.

@@               Coverage Diff               @@
##           development    #4568      +/-   ##
===============================================
+ Coverage        71.42%   71.44%   +0.02%     
===============================================
  Files              259      259              
  Lines             8378     8378              
  Branches          1562     1562              
===============================================
+ Hits              5984     5986       +2     
+ Misses            1988     1985       -3     
- Partials           406      407       +1

Impacted Files	Coverage Δ
...ker/themes/bs/bs-datepicker-container.component.ts	38.7% <0%> (ø)	⬆️
...hemes/bs/bs-daterangepicker-container.component.ts	30.76% <0%> (ø)	⬆️
src/chronos/i18n/sk.ts	80.85% <0%> (-2.13%)	⬇️
src/chronos/i18n/cs.ts	84.74% <0%> (-1.7%)	⬇️
src/typeahead/typeahead.directive.ts	74.86% <0%> (+1.04%)	⬆️
src/chronos/i18n/uk.ts	80.48% <0%> (+2.43%)	⬆️
src/chronos/i18n/pl.ts	77.77% <0%> (+2.77%)	⬆️

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[mc-suchecki]

@Domainv @valorkin can I get some feedback on this?

[mc-suchecki]

@Domainv @valorkin could you please take a look at this PR? I would like to know if you are interested in implementing this. If so, please suggest the next steps for me. Should there be a toggle to switch this feature on/off? What should be the default setting?

[valorkin]

Thanks for a PR, was fixed in other PR, and already available in v3.1.3
https://valor-software.com/ngx-bootstrap/#/datepicker#select-dates-from-other-month

[valorkin]

PR was by @daniloff200 but I don't recall PR number

[daniloff200]

That's it :) #4828

[valorkin]

Thanks