grim/guifications2

Noticed that I forgot to get the x11 and win32 specific display files into the cmake build, so moved them into src/ and added them depending on the target
429f2060c502b61b8220c14e5f8284486a56b136 gf_2_13_beta7
aaecb8c6010c75f5298437d927dfa87196fd0dee gf_2_13
ac214298c9addfad544e85832a5f0185dbce0df0 gf_2_14
d9f3834d8f7183928907edd988b26dfe8301349e gf_2_13beta7
e27e2ceeb4629300f79c259edef2f653228487d4 gf_2_16
ed1aa04713dab8542b6e98c96fb4b92df0833a4b gf_2_15