Start supporting Form project with modern CMake 3 buildsystem

[TaiXeflar]

From the started issues here: #467

I've started a testing playground for Form project with CMake 3.X support, based on @tueda 's template and with a little bit(maybe more less) extension.

I restarted and make this about 3 weeks and think there's lots things needs to test there, like other OS platform and the float support.....

Hope this playground can help Form enter in to a new era with modern support.

[update]: to the authors by click in README-PS.md to know how I modified the project.