Emitters can now damage and eventually break walls
Emitters can now completely destroy doors, given enough time.

Amount of shots per door varies depending on type. Regular airlocks are quite weak. Secure bolt-when-destroyed airlocks can take some punishment, and blast doors will take serious bombardment to destroy.
Fixes blast doors losing icon when being hit by emitter or similar weapon.
EMITTER MINING!

Yes! You can now mine using emitters. Each rock takes 3 blasts to break. This method will also yield less ore than other conventional methods. But using big lasers for mining is cool, right? Who cares about productivity.
Merge branch 'dev' of https://github.com/Baystation12/Baystation12 into pewPEWPEWboom

Attempt to resolve merge conflict.
Resolves compilation errors caused by previous merge
Merge branch 'dev' of https://github.com/Baystation12/Baystation12 into pewPEWPEWboom
Merge pull request #7175 from atlantiscze/pewPEWPEWboom

[Ready To Merge] Emitter update

or how I might learn to love the revert button.