Save cantera files that were made from chemkin files to a separate folder.

So they don't over-write the ones that are being written directly.

Author: rwest

rmgpy/rmg/main.py

@@ -1810,7 +1810,7 @@ def generate_cantera_files(self, chemkin_file, **kwargs):
         """
         transport_file = os.path.join(os.path.dirname(chemkin_file), "tran.dat")
         file_name = os.path.splitext(os.path.basename(chemkin_file))[0] + ".yaml"
-        out_name = os.path.join(self.output_directory, "cantera", file_name)
+        out_name = os.path.join(self.output_directory, "cantera_from_ck", file_name)
         if "surface_file" in kwargs:
             out_name = out_name.replace("-gas.", ".")
         cantera_dir = os.path.dirname(out_name)