Extract configure and routers from main.py into separate modules

- Main.py was becoming too big to manage. It had both
  controllers/routers and component configurations (search, processors)
  in it

- Now that the native app GUI code is also getting added to the main
  path, good time to split/modularize/clean main.py

- Put global state into a separate file to share across modules

src/utils/constants.py

@@ -1 +1,19 @@
-empty_escape_sequences = r'\n|\r\t '
+# External Packages
+import torch
+from pathlib import Path
+
+# Internal Packages
+from src.utils.config import SearchModels, ProcessorConfigModel
+from src.utils.rawconfig import FullConfig
+
+# Application Global State
+config = FullConfig()
+model = SearchModels()
+processor_config = ProcessorConfigModel()
+config_file: Path = ""
+verbose: int = 0
+device = torch.device("cuda:0") if torch.cuda.is_available() else torch.device("cpu") # Set device to GPU if available
+
+# Other Constants
+web_directory = Path(__file__).parent.parent / 'interface/web/'
+empty_escape_sequences = r'\n|\r\t '