Always on Lateral

Added toggle for Always On Lateral / No disengage lateral on gas and brake.

Lots of credit goes to "pfeiferj"! Couldn't of done it without him!

https: //github.com/pfeiferj/openpilot
Co-Authored-By: Jacob Pfeifer <jacob@pfeifer.dev>

selfdrive/car/interfaces.py

@@ -360,6 +360,8 @@ class CarStateBase(ABC):
     self.param = Params()
     self.param_memory = Params("/dev/shm/params")
 
+    self.main_enabled = False
+
   def update_speed_kf(self, v_ego_raw):
     if abs(v_ego_raw - self.v_ego_kf.x[0][0]) > 2.0:  # Prevent large accelerations when car starts at non zero speed
       self.v_ego_kf.set_x([[v_ego_raw], [0.0]])