Move font renderer in a separate folder as a library

meson.build

@@ -6,14 +6,11 @@ libdl = cc.find_library('dl', required : false)
 
 lua_dep = dependency('lua')
 sdl_dep = dependency('sdl2', method: 'config-tool')
-libagg_dep = dependency('libagg')
-freetype_dep = dependency('freetype2')
 stb_truetype_dep = dependency('stb_truetype')
 
 lite_include = include_directories('src')
 install_subdir('data', install_dir : 'bin')
 
-lite_cdefs = []
 lite_link_args = []
 if get_option('buildtype') == 'release'
   lite_link_args += ['-static-libgcc', '-static-libstdc++']
@@ -25,5 +22,6 @@ if host_machine.system() == 'windows'
     lite_rc += windows.compile_resources('res.rc')
 endif
 
+subdir('lib/font_renderer')
 subdir('src')
 subdir('tests')