fundamental-ngx v 0.0.22-beta

#287 fix context menu button issue
#325 update the button properties to reflect latest fiori-fundamentals
#284 refactor back button on popover component
#295 update the buttons on time picker
#323 fix an issue on time picker
#320 fix arrows of popover
#296 add compact mode for time picker
#311 update buttons on playground
#329 remove precommit hooks
#291 add compact mode for textarea and input group
#338 update list items for screen reader
#337 add email to README.md
#339 Angular 7 support
#342 fix an issue on modal
#334 add option for calendar to specify the first day of the week