Cruciform to Master (discordia-space#732)

* Add sprites for prayers book and cruciform, add on mob cruciform overlay generation

* Fix compilation errors caused by removing redundant xeno procs

* Override attack_self for bible to avoid 'Blank book' error message

* Implement religion selection in character setup, remove broken cruciform overlay generation

* Fix syntax error

* Onmob cruciform drawing

Get rid of sound environment effects. discordia-space#465 (discordia-…

…space#487)