Plugins: Introduce Plugin Registry (#47200)

* introduce registry write/read separation

* internal + external registries

* fix tests

* fixup

* rename

* move interfaces

* back to plugins.Store

* fix registry name

* remove context.TODOs

* remove some ctx for now

* tidy

* remove dupe logic

* update naming

* move from manager.go to store

* amend logger name

* new store writer svc

* restrict changes

* more simplifying

* move interfaces around

* remove unused

* fix linter

* tidy

* add registry test

* fix tests

* revert testdata changes

* revert testdata changes #1

* revert testdata changes #2

* revert testdata changes #3

* revert testdata changes #4

* revert testdata changes #5

* revert testdata changes

* fixup testdata

* remove unused log

* update naming in test

* adjust ctx in test

pkg/server/wire.go

@@ -33,6 +33,7 @@ import (
 	"github.com/grafana/grafana/pkg/plugins/backendplugin/coreplugin"
 	"github.com/grafana/grafana/pkg/plugins/manager"
 	"github.com/grafana/grafana/pkg/plugins/manager/loader"
+	"github.com/grafana/grafana/pkg/plugins/manager/registry"
 	"github.com/grafana/grafana/pkg/plugins/plugincontext"
 	"github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/accesscontrol/ossaccesscontrol"
@@ -140,6 +141,8 @@ var wireBasicSet = wire.NewSet(
 	updatechecker.ProvidePluginsService,
 	uss.ProvideService,
 	wire.Bind(new(usagestats.Service), new(*uss.UsageStats)),
+	registry.ProvideService,
+	wire.Bind(new(registry.Service), new(*registry.InMemory)),
 	manager.ProvideService,
 	wire.Bind(new(plugins.Client), new(*manager.PluginManager)),
 	wire.Bind(new(plugins.Store), new(*manager.PluginManager)),
@@ -148,7 +151,7 @@ var wireBasicSet = wire.NewSet(
 	wire.Bind(new(plugins.RendererManager), new(*manager.PluginManager)),
 	coreplugin.ProvideCoreRegistry,
 	loader.ProvideService,
-	wire.Bind(new(plugins.Loader), new(*loader.Loader)),
+	wire.Bind(new(loader.Service), new(*loader.Loader)),
 	wire.Bind(new(plugins.ErrorResolver), new(*loader.Loader)),
 	cloudwatch.ProvideService,
 	cloudmonitoring.ProvideService,