load and save sound gen records
added sound gen table
added missing sound gen table columns
preparing magic effects record for use in OpenCS
load and save magic effect records
added magic effects table
improved magic effect IDs
add magic effect records for newly created games
make sure magic effects added by expansions are available
added first batch of magic effect columns (re-using existing columns)
added missing magic effect table columns
load and save pathgrid records
added pathgrid subview
Merge branch 'master' into tables
fixed pathgrid loading
Fix crash when a magic projectile has no sound defined (Fixes #1967)
Use the footstep volume slider for jump landing sounds (Fixes #1968)
Optimize physics shape scaling on cell load
Simplify getEffectMultiplier.

Both return cases were same, except for some overflow conditions.
Fix magic projectile sound disappearing after multiple save/load cycles