Launch: Make exllamav2 requirement more friendly

Add the ability to use an unsafe config flag if needed and migrate
the exl2 check to a different file within the exl2 backend code.

Signed-off-by: kingbri <bdashore3@proton.me>

common/args.py

@@ -125,3 +125,12 @@ def add_logging_args(parser: argparse.ArgumentParser):
         type=str_to_bool,
         help="Enable generation parameter logging",
     )
+
+
+def add_developer_args(parser: argparse.ArgumentParser):
+    """Adds developer-specific arguments"""
+
+    developer_group = parser.add_argument_group("developer")
+    developer_group.add_argument(
+        "--unsafe-launch", type=str_to_bool, help="Skip Exllamav2 version check"
+    )

common/config.py

@@ -55,6 +55,11 @@ def override_config_from_args(args: dict):
             **{k.replace("log_", ""): logging_override[k] for k in logging_override},
         }
 
+    developer_override = args.get("developer")
+    if developer_override:
+        developer_config = get_developer_config()
+        GLOBAL_CONFIG["developer"] = {**developer_config, **developer_override}
+
 
 def get_sampling_config():
     """Returns the sampling parameter config from the global config"""
@@ -86,3 +91,8 @@ def get_network_config():
 def get_gen_logging_config():
     """Returns the generation logging config from the global config"""
     return unwrap(GLOBAL_CONFIG.get("logging"), {})
+
+
+def get_developer_config():
+    """Returns the developer specific config from the global config"""
+    return unwrap(GLOBAL_CONFIG.get("developer"), {})