Add an input to set the min years dropdown and max years dropdown

[akaNico]

Versions

• Angular version: 7
• component version: 2.4.1

Describe the bug When the option showDropdowns is enabled the min years is current date -50 and max years is currend date +5. The number 50 and 5 are hardcoded, is it possible to set these numbers via Input?

To Reproduce Steps to reproduce the behavior:

1. Set Input showDropdowns to true
2. Open the dateRangepicker
3. In the left picker the min years is -50
4. In the right pcker the max year is +5

Expected behavior Using two new Inputs it is possible to change the min and max year (eg. -5 and +50).

[santosh-k1]

We can display the custom date by using minDate and maxDate