Make XXHash NOT internal

[Marc477]

Since its a static class without any Netcode dependencies, i really see no reason to make this class Internal.
I would like to do some custom hashing in my own scripts, but i can't access this class because it's internal (why?).

This is probably the simplest fix ever, you just need to remove one word : internal.

Thank you.

[NaolShow]

That would be really cool.

I also in some projects need the XXHash class to make my owns..