Implement sAbsorb, sDamage, sDrain, sFortify and sRestore

Please consider the possibility of implementing the sAbsorb, sDamage, sDrain, sFortify and sRestore GMST. They are all implemented in vanilla, but are not implemented in OpenMW 0.48. This would reduce the description of magical effects affecting attributes and skills.

This page also says: status unimplemented.