feat: Add config flow for SmartIR integration with multi-step UI wizard

- Implemented a new config flow in `config_flow.py` for SmartIR, allowing users to select platforms, controllers, and devices through a guided interface.
- Added support for new device codes in `codes_index.json` for Apton and Andersson manufacturers.
- Enhanced fan, light, and media player components to support setup from config entries.
- Introduced `strings.json` and `translations/en.json` for improved localization of the configuration steps.
- Created a tool `build_index.py` to rebuild the `codes_index.json` from individual device JSON files.
- Updated `smartir_capture.py` to handle single-code modes and excluded modes for better device configuration.
- Added `iot_class` and `config_flow` attributes in `manifest.json` to support the new configuration flow.

custom_components/smartir/codes_index.json

@@ -2855,6 +2855,15 @@
       "controller": "Broadlink",
       "encoding": "Base64"
     },
+    {
+      "code": 2680,
+      "manufacturer": "Apton",
+      "models": [
+        "AFC-100T"
+      ],
+      "controller": "Broadlink",
+      "encoding": "Base64"
+    },
     {
       "code": 2700,
       "manufacturer": "Kolin",
@@ -3993,6 +4002,15 @@
       "controller": "Broadlink",
       "encoding": "Base64"
     },
+    {
+      "code": 1440,
+      "manufacturer": "Andersson",
+      "models": [
+        "L4223FDC PVR"
+      ],
+      "controller": "Broadlink",
+      "encoding": "Base64"
+    },
     {
       "code": 1460,
       "manufacturer": "Edifier",
@@ -4178,6 +4196,15 @@
       "controller": "Broadlink",
       "encoding": "Base64"
     },
+    {
+      "code": 1020,
+      "manufacturer": "NEC",
+      "models": [
+        "RE0201-CH1"
+      ],
+      "controller": "Broadlink",
+      "encoding": "Base64"
+    },
     {
       "code": 1021,
       "manufacturer": "NEC",