Add candidate info to OccupiedCore (#2134)

* guide: add candidate information to OccupiedCore

* add descriptor and hash to occupied core type

* guide: add candidate hash to inclusion

* runtime: return candidate info in core state

* bitfield signing: stop querying runtime as much

* minimize going to runtime in availability distribution

* fix availability distribution tests

* guide: remove para ID from Occupied core

* get all crates compiling

polkadot/node/core/provisioner/src/tests.rs

@@ -4,13 +4,14 @@ use polkadot_primitives::v1::{OccupiedCore, ScheduledCore};
 
 pub fn occupied_core(para_id: u32) -> CoreState {
 	CoreState::Occupied(OccupiedCore {
-		para_id: para_id.into(),
 		group_responsible: para_id.into(),
 		next_up_on_available: None,
 		occupied_since: 100_u32,
 		time_out_at: 200_u32,
 		next_up_on_time_out: None,
 		availability: bitvec![bitvec::order::Lsb0, u8; 0; 32],
+		candidate_descriptor: Default::default(),
+		candidate_hash: Default::default(),
 	})
 }