Fix pid_type "Normal" crashing on startup

PidFactory.create() calls both controllers with the same (dt, params,
model_params, theta_amb=...) signature, but TempController ("Normal")
only accepted (dt, params) - any config using pid_type "Normal" would
crash with a TypeError on startup. It has no internal model, so just
accepts and ignores the extra arguments.

components/pid/temp_controller.py

@@ -2,7 +2,10 @@ from components.pid.temp_controller_base import TempControllerBase
 
 
 class TempController(TempControllerBase):
-	def __init__(self, dt, params):
+	def __init__(self, dt, params, model_params=None, theta_amb=20):
+		# model_params/theta_amb are accepted (but unused) for constructor
+		# compatibility with TempControllerSmith - PidFactory.create() calls
+		# either with the same arguments; "Normal" has no internal model.
 		TempControllerBase.__init__(self, dt, params)
 		self.dt = dt
 		self.last_theta_ist = 20