message: Added source files to setup.py.
diff: @@ -52,6 +52,7 @@ extensions = [
  "dscribe.libacsf.acsfwrapper",
  [
  "dscribe/libacsf/acsfwrapper.cpp",
  + "dscribe/libacsf/acsf.cpp",
  ],
  language="c++",
  include_dirs=["dscribe/libacsf"],
  @@ -63,6 +64,7 @@ extensions = [
  "dscribe.libmbtr.mbtrwrapper",
  [
  "dscribe/libmbtr/mbtrwrapper.cpp",
  + "dscribe/libmbtr/mbtr.cpp",
  ],
  language="c++",
  include_dirs=["dscribe/libmbtr"],
  