Support for minimum and maximum dates

[anderconal]

What's new on this PR?

• New optional prop minDate for InputMoment component.
• New optional prop maxDate for InputMoment component.
• Next & previous month buttons disabled depending on minDate and maxDate.
• Previous & after dates disabled depending on minDate and maxDate.
• CSS updates in order to apply disabled styles.
• Gray color range updated at variables.less with two previously used gray colors.
• Example updated using both minDate and maxDate props.
• README.md updated with example using minDate & maxDate.
• render snapshot test updated in order to make it work with the new changes.

Screenshots

Previous month button disabled + previous dates disabled + after dates disabled

Next month button disabled + after dates disabled

How to test?

• Using the updated example (feel free to change the minDate and maxDate moments) play with the input trying to:
  • Click on previous & after dates (nothing should happen).
  • Click on previous & next month buttons (nothing should happen if disabled, same behaviour if enable).
  • Click on valid days (previous behaviour should be the same).
  • Whatever you would think in order to break & improve it.

Related issue

min and max dates

[codeaid]

Are there any plans to merge this in? It's been 4 months since this PR was opened.

[sandraloeve]

@wangzuo @anderconal Can this merge? It would be a very nice to have :+1:

[anderconal]

@sandragajowski I can't merge it, @wangzuo is the one who should if everything is fine

[zhr1130]

@wangzuo can we merge it ? It's a really great feature to have

[shadowangle]

@wangzuo can you merge this?

[akzarma]

Hey @wangzuo can you merge this?