Memory feature

[N1ckn1ght]

Should be able to change memory from GUI

[N1ckn1ght]

I think I will cap the cache to the power of 2 though... (still todo)
So, the usage will always be: 2^N + X, where N is the amount of entries, each entry consumes 16 bytes (128 bit), and X is the necessary constant (1.4 MB now) that's not related to cache.