refactor pyray into separate module

tests/test_static_with_only_api_from_dynamic.py

@@ -0,0 +1,37 @@
+"""
+This shows how to use the CFFI dynamic (ABI) binding.  Note that is slower and more likely to run into silent errors and segfaults.
+But it doesnt require any C compiler to build.
+"""
+
+from raylib import ffi, rl, colors
+
+rl.InitWindow(800, 450, b"Raylib dynamic binding test")
+rl.SetTargetFPS(60)
+
+camera = ffi.new("struct Camera3D *", [[18.0, 16.0, 18.0], [0.0, 0.0, 0.0], [0.0, 1.0, 0.0], 45.0, 0])
+image = rl.LoadImage(b"examples/models/resources/heightmap.png")
+texture = rl.LoadTextureFromImage(image)
+mesh = rl.GenMeshHeightmap(image, [16, 8, 16])
+model = rl.LoadModelFromMesh(mesh)
+print(model.materials)  # SHOULD BE A pointer to a 'struct Material' but some is NULL pointer to 'Material' ?
+model.materials.maps[rl.MATERIAL_MAP_DIFFUSE].texture = texture
+
+rl.UnloadImage(image)
+rl.SetCameraMode(camera[0], rl.CAMERA_ORBITAL)
+
+while not rl.WindowShouldClose():
+    rl.UpdateCamera(camera)
+    rl.BeginDrawing()
+    rl.ClearBackground(colors.RAYWHITE)
+    rl.BeginMode3D(camera[0])
+    rl.DrawModel(model, (-8.0, 0.0, -8.0), 1.0, colors.RED)
+    rl.DrawGrid(20, 1.0)
+    rl.EndMode3D()
+    rl.DrawText(b"This mesh should be textured", 190, 200, 20, colors.VIOLET)
+    rl.EndDrawing()
+rl.CloseWindow()
+
+"""
+Previously this failed to work in the same place the ctypes binding fails, accessing
+materials of a model.  I though it was because Python can't dynamically tell the difference between a pointer and an array.
+"""