Added Pause

I have added a very quickly put together form of pause system. It does basically what it is supposed to - Pause the game.

Now, the limitation with the current method is that it is not exactly possible for me to add an options option to the pause menu. I am looking into it.

I am going to work on improving visuals side by side.

The details :

How it works right now is by calling a pause method in gdscript ( did I mention I use Godot engine for this game ?! ). This pauses the elements in the current screen that we want to pause, so I pause everything but the pause screen and then just make it visible. But how I actually want to do is have the pause menu as a seperate scene in the game which is called upon pausing the game. With that I will be able to add an options button to the pause menu, which would change the scene to options scene. All in all changing scenes would make each scene simpler.

The fix shouldn't take long for me to figure out, but the present method should do for now.

I am new to game development so any and all criticism and or suggestions are appreciated.