V1.3 and goals

Hi, I did some things.. It's been 1 day I know your yelling at me I havent uploaded anything. who is you? I have no clue, it's probably me in a few hours when I relised I never thought this post through.

New Things in V1.3

- Camera controls including panning and zooming

- fixed the initial velocity bug

- bug: the background just stopped working, the html build had it broken in 1.23 but now it just doesnt exist so iIremoved it for now

Goals to come:

- a marker to see the inital velocity of a planet when simulation is paused

- a refactor of the code

- influence of planets from other planets and not just the sun

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