feat(calendardatepicker): initial implementation

[arturmiz]

Closes #70

For now the basic implementation is using native HTML input type="date"

[codecov]

Codecov Report

Merging #106 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #106   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           42        44    +2     
  Lines          278       285    +7     
  Branches        35        35           
=========================================
+ Hits           278       285    +7     

Impacted Files	Coverage Δ
...mponents/calendardatepicker/CalendarDatePicker.vue	100.00% <100.00%> (ø)
src/components/calendardatepicker/index.js	100.00% <100.00%> (ø)

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