Improved water shader

-- improved specular light
-- some color fixes
Improve dynamic light

-
Sun implementation

- removed temporarely sun from script files
- implement shadered sun based on Ren_172 dynamic sky technics
Improvements

- deleted depth shader
- remove non needed cam positon
- improve skybox shader
- fix sun direction for dynamic light shader
- suncolor in weather tables now used for light reflections
- delete unneeded parameters and files
Improvements

- fixed z-bias artifacts
- improved light reflections
Added dynamic weather

-- increase weather tables (5 themes for each hour) so they contains 120
wetter presets now
(has to been filled with correct data in next step)
-- added weather states (hot, sunny, cloudy, rainy, stormy)
-- added daytimes (night, morning, days, evening)
-- add weather stats to temporarely shader panel