Switch cli to click

Signed-off-by: Cristian Le <cristian.le@mpsd.mpg.de>

Author: LecrisUT

.pre-commit-config.yaml

@@ -45,4 +45,5 @@ repos:
       - id: mypy
         files: ^(fmf)
         additional_dependencies:
+          - click
           - types-jsonschema

fmf/__init__.py

@@ -11,6 +11,7 @@
 __version__ = importlib.metadata.version("fmf")
 
 __all__ = [
+    "__version__",
     "Context",
     "Tree",
     "filter",

fmf/__main__.py

@@ -0,0 +1,3 @@
+from .cli import main
+
+main()