Add x86 Windows builds to releases

[turbo]

For reasons unknown to man, x86 Windows is still a thing. I didn't notice any issues when building the 32bit version. Please add x86 builds to the releases for people who don't want to build from source.

Thanks!

[inikep]

Added here:
https://github.com/inikep/lz5/releases/tag/v1.5

[turbo]

Thanks!