some cleanup of f_pc/f_op files (#2254)

* cleanup f_pc files

* cleanup f_op files

* fix a couple f_op_actor_mng functions

* minor JSystem work

src/d/actor/d_a_obj_item.cpp

@@ -1352,7 +1352,7 @@ extern actor_process_profile_definition g_profile_ITEM = {
     7,
     fpcPi_CURRENT_e,
     PROC_ITEM,
-    &g_fpcLf_Method.mBase,
+    &g_fpcLf_Method.base,
     sizeof(daItem_c),
     0,
     0,
@@ -1362,4 +1362,4 @@ extern actor_process_profile_definition g_profile_ITEM = {
     0xC0100,
     fopAc_ACTOR_e,
     fopAc_CULLSPHERE_0_e,
-};
+};