feat(calendar): add capability to hide header

[Tibing]

Please read and mark the following check list before creating a pull request:

• [] I read and followed the CONTRIBUTING.md guide.
• [] I read and followed the New Feature Checklist guide.

Short description of what this resolves:

Closes #828

[codecov]

Codecov Report

Merging #838 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #838   +/-   ##
=======================================
  Coverage   77.07%   77.07%           
=======================================
  Files         201      201           
  Lines        5809     5809           
  Branches      439      439           
=======================================
  Hits         4477     4477           
  Misses       1237     1237           
  Partials       95       95

Impacted Files	Coverage Δ
...me/components/calendar/calendar-range.component.ts	52.08% <100%> (ø)	⬆️
...rk/theme/components/calendar/calendar.component.ts	100% <100%> (ø)	⬆️
...eme/components/calendar/base-calendar.component.ts	77.77% <100%> (ø)	⬆️
...eme/components/calendar-kit/calendar-kit.module.ts	100% <0%> (ø)	⬆️