** Added entity for CharacterSheet material
** Added support for rendering character sheet materials
** Added icon for character sheets
** Moved getIllusionEventFolder method into
IllusionEventMaterialParticipantSetting
** Added support for store / retrieve Illusion event material settings
** Fixed bug in character sheet material icon resolval
** Added support for using characters sheets through Illusion events
** Updated test scripts to work with changes in database