feat: add cron parser tool (#535)
* initial cron generator
* CRON parser update - initial loading, added Cronos reference, UI and localization
* translation and cleanup
* output format validation
better text
icons
* replaced input field with text box
* Final commit, icon, some spelling and last fixes
* new icon
* PR comments - compact mode fixes and text box autofill
* Addressed feedback
* Addressed more feedback
Co-authored-by: Nerijus Stimbirys <nerijus.stimbirys@uk.aswatson.com>
Co-authored-by: Etienne BAUDOUX <ebaudoux@velersoftware.com>
