Chore: Start annotations app (#113018)

* annotation legacy store with api server, read only

* Add a feature flag for annotations app

* implement list filters

* annotations are not addressable by ID for read operations

* fix registry apps test

* add ownership for an app

* disable linter

* typo, of course

* fix go workspace

* update workspace

* copy annotation app in dockerfile

* update workspace

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Co-authored-by: Tania B. <10127682+undef1nd@users.noreply.github.com>

apps/annotation/Makefile

@@ -0,0 +1,9 @@
+include ../sdk.mk
+
+.PHONY: generate # Run Grafana App SDK code generation
+generate: install-app-sdk update-app-sdk
+	@$(APP_SDK_BIN) generate \
+		--source=./kinds/ \
+		--gogenpath=./pkg/apis \
+		--grouping=group \
+		--defencoding=none