Add CMakeListst.txt for fontgen, however it is not enabled due to the broken state of the tool

tools/editors/fontgen/CMakeLists.txt

@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 2.8)
+
+include(FindFreetype)
+
+if (FREETYPE_FOUND)
+	include_directories(${FREETYPE_INCLUDE_DIRS})
+	link_libraries(${FREETYPE_LIBRARIES})
+endif (FREETYPE_FOUND)
+
+add_executable(fontgen fontgen.cpp)
+
+target_link_libraries(fontgen crown)
+