Bug fix and some updates

[b]We just fixed some bugs and reflected players opinion.[/b] Please refer to the list below 1. Modified blackening 2. Modified how sensor phrases show behind you back 3. Add Smooth Rotation Options 4. Add Cosmos controller input settings. 5. Fixed hand location problems in SteamVR 6. Automatic HMD height adjustment function 7. Fixed zombie jump bugs 8. Modified medicine explanation Image 9. Made them easy to play close-range weapons, drawers and books 10. Clear the way to move in EP2 11. Modified not to die from grenades during EP0 tutorial. Many thanks Please feel free to give us an idea about what you want to have in Deadgroundz.