Add comments in templates

templates/glue/language_wrappers/vm_if-body/interface.tmplt

@@ -4,6 +4,7 @@
 @@-- @_Direction_@           : "PI" or "RI"
 @@-- @_Kind_@                : The RCM Kind
 @@-- @_Parent_Function_@     : The name of the function
+@@-- @_Language_@            : The implementation language of the function
 @@-- @_Param_Names_@         : List of parameter names
 @@-- @_Param_Types_@         :   |_ Corresponding parameter types
 @@-- @_Param_Directions_@    :   |_ Corresponding direction

templates/skeletons/blackbox-c-header/interface.tmplt

@@ -4,6 +4,7 @@
 @@-- @_Direction_@           : "PI" or "RI"
 @@-- @_Kind_@                : The RCM Kind
 @@-- @_Parent_Function_@     : The name of the function
+@@-- @_Language_@            : The implementation language of the function
 @@-- @_Param_Names_@         : List of parameter names
 @@-- @_Param_Types_@         :   |_ Corresponding parameter types
 @@-- @_Param_Directions_@    :   |_ Corresponding direction