v2.2.0a3

New Features

• Add support for Phase 1 state machines
• Check for displayable types in the ground interface

What's Changed

• FPP State machine behavior spec by @garthwatney in #431
• Statemachine syntax by @garthwatney in #433
• Revise state machine spec by @bocchino in #440
• Statemachine check by @garthwatney in #439
• Update the state machine spec from the reviews by @garthwatney in #452
• Revise semantics of junctions by @bocchino in #461
• Statemachine code by @garthwatney in #450
• Update state machine spec by @bocchino in #479
• Phase1 state machine instance additions spec update by @garthwatney in #487
• Phase1 state machine instance additions syntax update by @garthwatney in #488
• Phase1 state machine instance additions semantics update by @garthwatney in #489
• Add Phase 1 state machines to User's Guide by @bocchino in #484
• Phase1 state machine instance additions code update by @garthwatney in #491
• Add Displayable Types by @jwest115 in #494
• Fix a glitch in CI by @bocchino in #498
• Phase 1 state machines by @garthwatney in #493

Full Changelog: v2.2.0a2...v2.2.0a3