Closes #2434
- added usable cmake config file by transferring files structure from visual studio project file - contains also basic support for mingw make file creation - see https://ci.appveyor.com/project/chcg/notepad-plus-plus/build/1.0.38 for successful with own appveyor config Closes #2477
git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@460 f5eea248-9336-0410-98b8-ebc06183d4e3