Add support for all models

Add AbstractProvider class
Add ProviderType type
Add get_last_provider function
Add version module and  VersionUtils
Display used provider in gui
Fix error response in api

g4f/debug.py

@@ -1,45 +1,5 @@
-from os import environ
-import requests
-from importlib.metadata import version as get_package_version, PackageNotFoundError
-from subprocess import check_output, CalledProcessError, PIPE
-from .errors import VersionNotFoundError
+from .base_provider import ProviderType
 
-logging = False
-version_check = True
-
-def get_version() -> str:
-    # Read from package manager
-    try:
-        return get_package_version("g4f")
-    except PackageNotFoundError:
-        pass
-    # Read from docker environment
-    current_version = environ.get("G4F_VERSION")
-    if current_version:
-        return current_version
-    # Read from git repository
-    try:
-        command = ["git", "describe", "--tags", "--abbrev=0"]
-        return check_output(command, text=True, stderr=PIPE).strip()
-    except CalledProcessError:
-        pass
-    raise VersionNotFoundError("Version not found")
-    
-def get_latest_version() -> str:
-    if environ.get("G4F_VERSION"):
-        url = "https://registry.hub.docker.com/v2/repositories/"
-        url += "hlohaus789/g4f"
-        url += "/tags?page_size=2&ordering=last_updated"
-        response = requests.get(url).json()
-        return response["results"][1]["name"]
-    response = requests.get("https://pypi.org/pypi/g4f/json").json()
-    return response["info"]["version"]
-
-def check_pypi_version() -> None:
-    try:
-        version = get_version()
-        latest_version = get_latest_version()
-        if version != latest_version:
-            print(f'New pypi version: {latest_version} (current: {version}) | pip install -U g4f')
-    except Exception as e:
-        print(f'Failed to check g4f pypi version: {e}')
+logging: bool = False
+version_check: bool = True
+last_provider: ProviderType = None