Avoid defining min/max macros from winmindef.h/minmax.h

[CraftedCart]

Avoid defining min/max macros from winmindef.h/minmax.h, since I was bitten by this trying to use std::numeric_limits<T>::max() in a mod I've been tinkering with. :P

• Everywhere we used to use min/max macros now uses std::min/std::max functions from <algorithm>
• Headers that include winmindef.h (eg: by including Windows.h directly, or through DirectX headers) now define both WIN32_LEAN_AND_MEAN and NOMINMAX if they weren't already defined, both to avoid the min/max macro pollution, and cut down on how much un-needed stuff from Windows.h gets included
• Source files that use the windows headers just define WIN32_LEAN_AND_MEAN and NOMINMAX directly at the top too now