feat: User metadata (#2025)

* feat: user meta data events

* feat: user meta data set tests

* feat: user meta data tests

* feat: user meta data in protos

* feat: user meta data command api

* feat: user meta data query side

* feat: proto correct order, fix handlers

* feat: proto correct order

* feat: fixes of pr comments

* feat: fixes of pr comments

* feat: value as byte array

* feat: metadata feature

* Update internal/auth/repository/eventsourcing/handler/meta_data.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update internal/command/user_meta_data.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update proto/zitadel/metadata.proto

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update proto/zitadel/metadata.proto

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* fix: rename metadata files and table

* fix: rename meta data to metadat in protos

* Update internal/domain/metadata.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* fix: rename vars

* fix: rebiuld docs

* Update internal/iam/repository/view/metadata_view.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

Co-authored-by: Silvan <silvan.reusser@gmail.com>

internal/repository/user/eventstore.go

@@ -45,6 +45,8 @@ func RegisterEventMappers(es *eventstore.Eventstore) {
 		RegisterFilterEventMapper(UserDomainClaimedType, DomainClaimedEventMapper).
 		RegisterFilterEventMapper(UserDomainClaimedSentType, DomainClaimedSentEventMapper).
 		RegisterFilterEventMapper(UserUserNameChangedType, UsernameChangedEventMapper).
+		RegisterFilterEventMapper(MetadataSetType, MetadataSetEventMapper).
+		RegisterFilterEventMapper(MetadataRemovedType, MetadataRemovedEventMapper).
 		RegisterFilterEventMapper(HumanAddedType, HumanAddedEventMapper).
 		RegisterFilterEventMapper(HumanRegisteredType, HumanRegisteredEventMapper).
 		RegisterFilterEventMapper(HumanInitialCodeAddedType, HumanInitialCodeAddedEventMapper).