Merged in feature/mutable-metadata1 (pull request #221)

M1, M2 and M3 complete

* M1, M2 and M3 complete

* review changes

* docs

* docs

api/queryAPI/testutils_test.go

@@ -7,6 +7,7 @@ import (
 	clientupdate "queryorchestration/internal/client/update"
 	"queryorchestration/internal/collector"
 	collectorset "queryorchestration/internal/collector/set"
+	"queryorchestration/internal/customschema"
 	"queryorchestration/internal/document"
 	documentbatch "queryorchestration/internal/document/batch"
 	documentdownload "queryorchestration/internal/document/download"
@@ -55,6 +56,7 @@ func createControllerServices(cfg *ControllerConfig) *queryapi.Services {
 	lbl := label.New(cfg)
 	eul := eula.New(cfg)
 	uiSvc := uisettings.New(cfg)
+	customSchema := customschema.New(cfg, &customschema.SchemaValidator{}, customschema.NewSlogAuditSink(cfg.GetLogger()))
 
 	return &queryapi.Services{
 		Export:           exp,
@@ -68,6 +70,7 @@ func createControllerServices(cfg *ControllerConfig) *queryapi.Services {
 		DocumentBatch:    docbatch,
 		UISettings:       uiSvc,
 		FieldExtraction:  fieldext,
+		CustomSchema:     customSchema,
 		Folder:           fld,
 		Label:            lbl,
 		Eula:             eul,