add cfcheker run script

scripts/runcfchecker.py

@@ -0,0 +1,20 @@
+import argparse
+import stglib
+import xarray as xr
+
+
+def cfcheckername_parser():
+    description = "Run cfchecker on .nc files"
+    parser = argparse.ArgumentParser(description=description)
+    parser.add_argument("ncname", help=".nc filename")
+
+    return parser
+
+
+args = cfcheckername_parser().parse_args()
+
+print(args.ncname)
+
+ds = xr.open_dataset(args.ncname)
+
+stglib.core.utils.check_compliance(args.ncname, conventions=ds.attrs["Conventions"])