CloudMonitoring: Add support for preprocessing (#33011)

* add support for handling preprocessors in the backend

* add preprocessor tests

* use uppercase for constants

* add super label component

* remove error message from query editor since its not working (probably cause onDataError doesnt work anymore)

* use cheat sheet instead of help

* add return type annotation for projects

* add support for preprocessing. replace segment comp with select. change components names and refactoring

* cleanup

* more pr feedback

* fix annotations editor

* rename aggregation component

* fix broken test

* remove unnecessary cast

* fix strict errors

* fix more strict errors

* remove not used prop

* update docs

* use same inline label for annotation editor

* fix react prop warning

* disable preprocessing for distribution types

* using new default values for reducer

* auto select 'rate' if metric kind is not gauge

* fix create label format

* pr feedback

* more pr feedback

* update images

pkg/tsdb/cloudmonitoring/preprocessor.go

@@ -0,0 +1,22 @@
+package cloudmonitoring
+
+type preprocessorType int
+
+const (
+	PreprocessorTypeNone preprocessorType = iota
+	PreprocessorTypeRate
+	PreprocessorTypeDelta
+)
+
+func toPreprocessorType(preprocessorTypeString string) preprocessorType {
+	switch preprocessorTypeString {
+	case "none":
+		return PreprocessorTypeNone
+	case "rate":
+		return PreprocessorTypeRate
+	case "delta":
+		return PreprocessorTypeDelta
+	default:
+		return PreprocessorTypeNone
+	}
+}