Everywhere: Give stbtt its own 32MB static memory pool

At boot time, we preallocate 32MB of RAM to reuse for all malloc()
requests by stbtt_RenderText(), which should be more than enough for the
primary use case (browsing web pages).

System/MakeSystem.HC

@@ -23,6 +23,7 @@ WinToTop(adam_task);
 #include "FFI/LibC";
 #include "FFI/New";
 #include "FFI/ELF64";
+#include "FFI/TrueType";
 
 // stb_image library
 #include "Utilities/Image";