add freetype test

test/freetype2.cpp

@@ -0,0 +1,11 @@
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+int main()
+{
+    FT_Library library;
+    AEDI_EXPECT(FT_Init_FreeType(&library) == FT_Err_Ok);
+    AEDI_EXPECT(FT_Done_FreeType(library) == FT_Err_Ok);
+
+    return 0;
+}