Updated TGWUI Remote Extension

Updates:
- Fully re-worked
- Behaves as both a remote extension & the TGWUI code for script.py to import
- Added RVC pitch support
- Config will be central OR JSON file depending how the script is run/imported

system/TGWUI_Extension/languages.json

@@ -0,0 +1,18 @@
+{
+  "Arabic": "ar",
+  "Chinese": "zh-cn",
+  "Czech": "cs",
+  "Dutch": "nl",
+  "English": "en",
+  "French": "fr",
+  "German": "de",
+  "Hungarian": "hu",
+  "Italian": "it",
+  "Japanese": "ja",
+  "Korean": "ko",
+  "Polish": "pl",
+  "Portuguese": "pt",
+  "Russian": "ru",
+  "Spanish": "es",
+  "Turkish": "tr"
+}