Merge pull request #18 from swapnil1104/hint_support fixing NPE in OtpEditText

Merge pull request #16 from swapnil1104/hint_support Added Hint Support

Merge pull request #14 from swapnil1104/interactive_animation Added Shake animation

Merge pull request #12 from swapnil1104/androidXmigration Upgraded to AndroidX

Fixing bug for oev_text_color 

Adding TextWatcher implementation for OnCompleteListener 

Merge pull request #7 from swapnil1104/completion_callback Completion callback

Merge pull request #4 from swapnil1104/1_hide_input_text Mask input with special character feature

Merge pull request #1 from swapnil1104/2_underline_highlight added new feature which allows the OtpEditText to have multiple styles.

Added readme.MD file for instructions