pytec: Add hardware testing script

Eases the process of testing the hardware.

See #143.

@@ -0,0 +21,4 @@
+        "-d",
+        "--deviation",
+        default=100,
+        help="Allowed deviation of resistance in Ohms",

@@ -0,0 +41,4 @@
+        sens_resistance = thermostat.get_report()[channel]["sens"]
+        if sens_resistance is not None:
+            print(sens_resistance, "Ω")
+            if min_allowed_resistance < sens_resistance < max_allowed_resistance:

@@ -0,0 +46,4 @@
+            else:
+                print("FAILED")
+        else:
+            print("Floating SENS pin(s) detected! Is the channel connected?")

@@ -0,0 +10,4 @@
+    parser = argparse.ArgumentParser(description="Thermostat hardware testing script")
+
+    parser.add_argument("HOST", metavar="host", default="192.168.1.26", nargs="?")
+    parser.add_argument("PORT", metavar="port", default=23, nargs="?")