GTA4 Environment mod v3

All environment files rewritten from scratch to get more realistic ambient light, direct light, water etc.
Increased trafic and view distance for peds and cars.
Softened the shadows so it should be less dark in the shadows.
Headlights and all other light edited to be more narrow and more bright/ view distance.
New water colour and summer green trees with reduced flicker
Included all shaders from patch3 and 2 files from patch2 for nicer shadows on lower resolutions.