Add new test file to project files

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4695 dfc29bdd-3216-0410-991c-e03cc46cb475
- CGUICheckBox no longer gives up focus on EMIE_LMOUSE_LEFT_UP (thx @Demre for reporting http://irrlicht.sourceforge.net/forum/viewtopic.php?f=1&t=49598)


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4696 dfc29bdd-3216-0410-991c-e03cc46cb475