Stateful names, filters, request form config as an API

What's Changed

• Krist/be 472 on applicable requests add to serialization by @SilvyPuzzlewell in #66
• Miroslavsimek/be 468 add stateful name and stateful description on request type by @mesemus in #64
• Krist/be 473 on request form config add by @SilvyPuzzlewell in #67
• Krist/be 475 delete draft by @SilvyPuzzlewell in #68
• Krist/be 474 filters on apirequests by @SilvyPuzzlewell in #69

Full Changelog: 2.1.5...2.2.0