Plugins: Add plugin settings DTO (#46283)

* add clearer service layer

* re-order frontend settings for clarity

* fix fetch fail

* fix API response

* fix mockstore

* in -> where

pkg/services/pluginsettings/models.go

@@ -0,0 +1,43 @@
+package pluginsettings
+
+import (
+	"time"
+)
+
+type DTO struct {
+	ID             int64
+	OrgID          int64
+	PluginID       string
+	PluginVersion  string
+	JSONData       map[string]interface{}
+	SecureJSONData map[string][]byte
+	Enabled        bool
+	Pinned         bool
+	Updated        time.Time
+}
+
+type UpdateArgs struct {
+	Enabled                 bool
+	Pinned                  bool
+	JSONData                map[string]interface{}
+	SecureJSONData          map[string]string
+	PluginVersion           string
+	PluginID                string
+	OrgID                   int64
+	EncryptedSecureJSONData map[string][]byte
+}
+
+type UpdatePluginVersionArgs struct {
+	PluginVersion string
+	PluginID      string
+	OrgID         int64
+}
+
+type GetArgs struct {
+	OrgID int64
+}
+
+type GetByPluginIDArgs struct {
+	PluginID string
+	OrgID    int64
+}