Query history: Create API to add query to query history (#44479)

* Create config to enable/disable query history

* Create add to query history functionality

* Add documentation

* Add test

* Refactor

* Add test

* Fix built errors and linting errors

* Refactor

* Remove old tests

* Refactor, adjust based on feedback, add new test

* Update default value

pkg/services/queryhistory/queryhistory_create_test.go

@@ -0,0 +1,23 @@
+package queryhistory
+
+import (
+	"testing"
+
+	"github.com/grafana/grafana/pkg/components/simplejson"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCreateQueryInQueryHistory(t *testing.T) {
+	testScenario(t, "When users tries to create query in query history it should succeed",
+		func(t *testing.T, sc scenarioContext) {
+			command := CreateQueryInQueryHistoryCommand{
+				DatasourceUid: "NCzh67i",
+				Queries: simplejson.NewFromAny(map[string]interface{}{
+					"expr": "test",
+				}),
+			}
+			sc.reqContext.Req.Body = mockRequestBody(command)
+			resp := sc.service.createHandler(sc.reqContext)
+			require.Equal(t, 200, resp.Status())
+		})
+}