B12974, Added validation for SQL parameters in FE requiring {{ }} enclosure

• Added validation to ensure 5 SQL parameters (sqlBefore, sqlInsert, sqlUpdate, sqlDelete, sqlAfter) in FE are enclosed by {{ }}.
• New helper method isEnclosedWithBraces.
• New method validateFeActions to check for proper enclosure and throw an exception if validation fails.

extension/Classes/Core/Form/FormAction.php

@@ -133,6 +133,8 @@ class FormAction {
 
         // Iterate over all Action FormElements
         foreach ($feSpecAction as $fe) {
+            // Check if sql*** = Exists and is Enclosed by {{ }}
+            Support::validateFeActions($fe, ACTION_REQUIRING_BRACES);
 
             // Preparation for Log, Debug
             $this->store->setVar(SYSTEM_FORM_ELEMENT, Logger::formatFormElementName($fe), STORE_SYSTEM); // debug