Epic: Support different calendars type

[latin-panda]

Useful links

User-facing documentation
Design doc

Description

Collect currently supports different calendar types, and this Epic tracks their implementation work.

Sub-tasks

• Ethiopian calendar
• Coptic calendar
• Buddhist calendar
• Islamic calendar:
• Myanmar calendar:
• Persian calendar
• Bikram sambat (Nepali) calendar

Related

Epic: Add date picker support

[latin-panda]

FYI @alyblenkin @lognaturel, please add more details as needed.