K7 Athlon XP specs

[Benzhaomin]

Added Palomino, Thoroughbred, Barton and Thorton

Only desktop chips

Reference: https://en.wikipedia.org/wiki/List_of_AMD_Athlon_XP_microprocessors

[zcskywire2]

So far so good. I'll have to look at it more later. However I'd remove the changes in the build.bash and gitnore.

[markasoftware]

I've removed the PATH change from build.bash (it should be run with npm run build, which sets the path automatically, the readme is a bit fooped up), and apart from that, it looks good. I haven't checked over the parts thoroughly, I'll wait for @zcskywire2 to verify that before merging it.

[Benzhaomin]

All fixed now :)