Enhance IR control functionality and configuration

- Updated angle_minus value in config.json for switch calibration.
- Added support for seminsu devices in load_seminsus function.
- Implemented polling logic for seminsu devices in main.py.
- Adjusted switch position representation from "-" and "+" to "1" and "0".
- Introduced IRRxTxPollPair class for IR communication in ir_pair.py.
- Created ir_test.py for testing IR functionality with configurable parameters.

config.json

@@ -3,7 +3,7 @@
         {
             "id": 1283,
             "pin": 12,
-            "angle_minus": 65,
+            "angle_minus": 70,
             "angle_plus": 125
         },
                 {
@@ -24,5 +24,17 @@
             "angle_minus": 125,
             "angle_plus": 65
         }
+    ],
+    "seminsus": [
+        {
+            "id": 6000,
+            "pin_rx": 16,
+            "pin_tx": 6
+        },
+        {
+            "id": 6001,
+            "pin_rx": 17,
+            "pin_tx": 7
+        }
     ]
 }