Started new feature to include the box creation in terms of:

player clicking on the screen

random creation of falling boxes (tbd)
The idea is to keep binary files untracked and possible place them in Preforce. Otherwise, git tracks
the binaries and stores a version of the binary on each commit and so can become very expensive
in terms of memory storage.
git ignore modified to ignore tif extensions, e.g., skyboxes.

BoxManager allows boxes to fall from the sky.

OnGUI creates an outline of a box so that you know where the next box will drop from. This needs to be made to look nicer.
Added several colours.

Generation of boxes with different colours by BoxManager.

Player can switch between the coloured boxes using 1, 2, 3 keys.

Began implementing a box to depict the player's current colour choice: there is a problem that once you set a texture to one already set, it seems to re-allocate to that object by reference and so the
object it was taken from, actually no longer has it at the end of the application running. This problem must be fixed for the game to run. Currently it will not run in this state.
Created temporary shell portal prefab.

Corrected textures so that show up for their given size on the users cursor and also the current choice selection on the user GUI.

Box creation is temporarily ready, the next feature should include:

1. Health system for the player
2. Portal creation
3. Start menu/Level loading/Game over
Merge branch 'feature/BoxCreation' into develop