Update C sources, add new functions

examples/shaders/model_shader/glsl330/base.vs

@@ -23,4 +23,4 @@ void main()
     
     // Calculate final vertex position
     gl_Position = mvp*vec4(vertexPosition, 1.0);
-}
+}

examples/shaders/model_shader/main.go

@@ -40,13 +40,13 @@ func main() {
 
 		raylib.ClearBackground(raylib.RayWhite)
 
-		raylib.Begin3dMode(camera)
+		raylib.BeginMode3D(camera)
 
 		raylib.DrawModel(dwarf, position, 2.0, raylib.White) // Draw 3d model with texture
 
 		raylib.DrawGrid(10, 1.0) // Draw a grid
 
-		raylib.End3dMode()
+		raylib.EndMode3D()
 
 		raylib.DrawText("(c) Dwarf 3D model by David Moreno", screenWidth-200, screenHeight-20, 10, raylib.Gray)