Add pyinstaller bundle support

Will allow creating generating pre-made builds for windows that do not
require python to be already installed.

bundle/EntranceRandomizer.spec

@@ -0,0 +1,33 @@
+# -*- mode: python -*-
+
+block_cipher = None
+
+
+a = Analysis(['..\\EntranceRandomizer.py'],
+             pathex=['bundle'],
+             binaries=[],
+             datas=[('../data/', 'data/'), ('../README.html', '.'), ('../LICENSE.txt', '.')],
+             hiddenimports=[],
+             hookspath=[],
+             runtime_hooks=['bundle/_rt_hook.py'],
+             excludes=['lzma', 'bz2'],
+             win_no_prefer_redirects=False,
+             win_private_assemblies=False,
+             cipher=block_cipher)
+pyz = PYZ(a.pure, a.zipped_data,
+             cipher=block_cipher)
+exe = EXE(pyz,
+          a.scripts,
+          exclude_binaries=True,
+          name='EntranceRandomizer',
+          debug=False,
+          strip=False,
+          upx=False,
+          console=True )
+coll = COLLECT(exe,
+               a.binaries,
+               a.zipfiles,
+               a.datas,
+               strip=False,
+               upx=False,
+               name='EntranceRandomizer')