Blender Git Loki

Geometry Nodes: Implicit conversion change for float/int/color to bool

Change `float to boolean` and `int32 to boolean` to return false for zero and negative values.

This aligns with how artists would expect these values to work. This is in contrast to what a coder would expect. It was determined on blender.chat that this was a better default. This means that a negative float value would give a boolean false.

Change `Color4f to boolean` to return false for zero and negative grayscale values.

Likewise, for color to boolean, to account for negative value colors, the grayscale value would be used for determining if a colour was false or not.

See {T86454}

Reviewed By: JacquesLucke

Differential Revision: https://developer.blender.org/D10685