No page allocation if writes match the initializer
No page allocation if writes match the initializer

Meaning we can copy all data from a different instance by doing:

		for i in 0..MAX_MEMORY {
			copy.write_u8(i, self.read_u8(i));
		}

without actually allocating pages unless necessary, if both instances
share the same initializer.

marhel/r68k,marhel/r68k,emoon/r68k,emoon/r68k