Added script: Divinity 2 (WIP)

Installs and runs
Divinity 2: improve performance

Switch to Wine 1.5.21 (the newer the merrier)
Only override d3dx9_36
Divinity 2: performance tweak

Disable GLSL by default, only helps a bit
Divinity 2: fix documentation link
Divinity 2: fix configurator link
Divinity 2: configurator not working, dropping