fix(data): change order of op and tag in EntityAction type

Change the order of EntityOp and tag in the creation of EntityAction
type strings. To ensure ngrx/data actions are exempt from action
immutability run time checks.

BREAKING CHANGES:

EntityAction type strings change format. Any action filters against the
type string instead of the payload values for tag and entityOp values
may not work as expected.

BEFORE:

EntityAction type = `[${tag | entityName}] ${op}`

AFTER:

EntityAction type = `${op} [${tag | entityName}]`

modules/data/src/actions/entity-action-factory.ts

@@ -79,7 +79,7 @@ export class EntityActionFactory {
   }
 
   formatActionType(op: string, tag: string) {
-    return `[${tag}] ${op}`;
+    return `${op} [${tag}]`;
     // return `${op} [${tag}]`.toUpperCase(); // example of an alternative
   }
 }