Attempt to fix 'Failed to execute script pyi_rth_pkgres' on windows

pyinstaller-win/hh-creator.spec

@@ -9,7 +9,7 @@ a = Analysis(['hh-creator.py'],
              pathex=['pyinstaller-win'],
              binaries=[],
              datas=[('..\\hh_creator\\resource', 'resource')],
-             hiddenimports=[],
+             hiddenimports=[pkg_resources.py2_warn],
              hookspath=['.'],
              runtime_hooks=[],
              excludes=['FixTk', 'tcl', 'tk', '_tkinter', 'tkinter', 'Tkinter'],