Added Shooting system

WARNING: Buggy ; probably not working
Also: Moved, added, removed files
Completly changed Shooting

Shooting is now completly different and WAY simpler; +it's working now
Fixed FPS Mesh not rotation with camera
Added Raytrace Shooting and Sounds
Added Menu ; organized Files ; fixed bugs

fixed a bug with ray trace shooting
Fixed Bugs, organized Files
Changed Shooting slightly ; Added Particle Shooting

(FlickeringLightBrightness.cpp now contains an example for a timer ; you
can activate it to make the light flicker slower)
Added Physical Material Footsteps ; Updated Code
Updated Project to UE4.3 + FluidSurface

Have fun!
organized assetts, fixed bugs
updating Gitirgnore

LAWL
update gitignore again...

... because to incompetent to do right at first try
updae gitignore yet again (+some other shit)
Updated to 4.4
Starting to implement new UMG HUD :)
Updated Project to UE4.5

Also: removed Fluid Surface for now
Merge pull request #4 from CAPTNCAPS/experimental

Experimental