Add ceremonies trusted calls

[echevrier]

for all ceremonies calls https://github.com/encointer/pallets/blob/3fc6c4fcef549d32e0ed7beb73ac940b43b25af3/ceremonies/src/lib.rs#L104

[echevrier]

• ceremonies_register_participant(AccountId, CommunityIdentifier,Option<ProofOfAttendance<Signature, AccountId>>),
• ceremonies_upgrade_registration(AccountId, CommunityIdentifier, ProofOfAttendance<Signature, AccountId>, ),
• ceremonies_unregister_participant(AccountId, CommunityIdentifier, Option),
• ceremonies_attest_attendees(AccountId, CommunityIdentifier, u32, CeremonyIndexType, Vec, ),
• ceremonies_endorse_newcomer(AccountId, CommunityIdentifier, AccountId),
• ceremonies_claim_rewards(AccountId, CommunityIdentifier, Option),
• ceremonies_set_inactivity_timeout(AccountId, InactivityTimeoutType),
• ceremonies_set_endorsement_tickets_per_bootstrapper(AccountId, EndorsementTicketsType),
• ceremonies_set_endorsement_tickets_per_reputable(AccountId, EndorsementTicketsType),
• ceremonies_set_reputation_lifetime(AccountId, ReputationLifetimeType),
• ceremonies_set_meetup_time_offset(AccountId, MeetupTimeOffsetType),
• ceremonies_set_time_tolerance(AccountId, Moment),
• ceremonies_set_location_tolerance(AccountId, u32),
• ceremonies_purge_community_ceremony(AccountId, CommunityCeremony),

[echevrier]

There are all manually added in the trusted calls (

community-sidechain/app-libs/stf/src/trusted_call.rs

Line 156 in 5c6fdba

TrustedCall::ceremonies_upgrade_registration(sender_account, ..) => sender_account,

), but need perhaps some rework and tests.