Phyrexian-split mana

[Araneline]

Add support for two currently existing split-phyrexian mana. Those are represented by GUP and GWP classes. Those symbols appear in:

• "Tamiyo, Compleated Sage " (NEO)
• "Ajani, Sleeper Agent" (DMU)

WARNING I haven't found any settings to use with minify libraries. Hence, I left the mana.min.css untouched. If you will merge this, please update this file.

[MatthieuLP]

I'd love to see this one merged!

[andrewgioia]

Thanks @Araneline!