Method overloads for Texture::Load

[lucas-watkins]

Method overloads have been made for the Texture class to unload the previous texture before loading in a new texture. I'm not sure if other classes (ex: Shader) would have this issue, but it might be worth updating other classes to follow this same behavior for consistency reasons.

[RobLoach]

Looks great! Thanks.

[RobLoach]

As for Shaders, I guess it could impact them. But I'm not sure how often you would re-load a shader.

[lucas-watkins]

True, shaders are not that great of an example for this since they don't have an instance method for loading. However, I think the Wave class might exhibit similar behavior potentially along with some other classes.

raylib::Wave wave("resources/file.wav");
// The wave potentially leaks its buffer if .Unload() is not called
// wave.Unload();
wave.Load("resources/anotherfile.wav");