Fixed the ranged bio weapons. They had a few bugs.
The fusion blaster didn't use ammo.
The lightning generator didn't use moves.
The laser and lightning generator never refunded biopower on a cancel.
And the lightning generator did not do a lot of damage anymore after the bouncing got nerfed.

Fixed the above. Upped the lightning generator damage from 6 to 16. Increaste the install difficulty from 3 to 5. (Same as fusion blaster). Fusion blaster is a lot better vs single targets, lightning works on larger groups to soften them up.

Cleaned up some code in bionics.cpp (duplicated code).

Created the BIO_WEAPON tag. Use it next to NO_AMMO implanted weapons. So the game can create the virtual ammo, and then reduce it by one if the gun fired a shot. Burst fire bio weapons are NOT supported.
Added new flag to documentation.
Updated how to add a new bionic documentation.
difficulty lowered to 4
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into CBM_Lightning_Upgrade
Merge branch 'CBM_Lightning_Upgrade' of https://github.com/Soyweiser/Cataclysm-DDA into Soyweiser-CBM_Lightning_Upgrade