Update to zig 0.15.2

Signed-off-by: Emily Flion <[email protected]>

Fix upstream builds using both libraries

I forgor how the build system worked 💀

Signed-off-by: Emily Flion <[email protected]>

Add first release of libgomoku - 0.1.0

Basically just the same ugly code, but at least it works.

Signed-off-by: Emily Flion <[email protected]>