Statue fixes

This PR adds some fixes to the mineral statues.

1. Adds a cooldown to attacking it with your hand, so it doesn't rapidly spam the rubbing message anymore.

2. Mineral statues starts of unanchored, so you can pull/push them around.
2.A. It takes 4 seconds to wrench and unwrench.

3. Mineral statues can now be deconstructed.
3.A. When unanchored, a welding can be used to deconstruct it. It takes 4 seconds.
3.B. A plasmacutter can deconstruct it, it takes 3 seconds. Regardless if anchored or not.
3.C. A diamond drill can also deconstruct it. It takes .5 seconds. Regardless of it is anchored or not. Using a diamond drill destroys it though and leaves no minerals behind.

4. Mineral Statues now leaves fingerprints when attacked.

code\game\objects\structures\statues.dm:23:error: user.do_attack_animation: undefined proc
code\game\objects\structures\statues.dm:83:error: user.do_attack_animation: undefined proc

That's when I tried adding it.