Move Repair and Salvage back to fn_selfActions

Partial revert of: 3aad4b6

Unfortunately this will not support loading external vehicle addons
(with custom UserActions) which we can not include in Epoch. Child
UserActions overwrite inherited UserActions.

SQF/dayz_code/actions/repair_cancel.sqf

@@ -1,2 +1,3 @@
 {dayz_myCursorTarget removeAction _x} count s_player_repairActions;s_player_repairActions = [];
+s_player_repair_crtl = -1;
 dayz_myCursorTarget = objNull;