Move org.bukkit.craftbukkit.libs.org.objectweb.asm to
org.libigot.internal.libs.org.objectweb.asm

This looks like a better place as this library isn't used by
CraftBukkit. Also this removes ASM completely from our repository,
instead we use maven to include it at compile time (like it's done with
all other librarys, too).

Signed-off-by: V10lator <v10lator@myway.de>