GMToolbox - Uncrashable Prop Protection + Exploit Detector

Changes:

1. Changed default values of some config options
2. Cleaned up some code for Duplicator

Fixes:

1. Damaging other players being prevented
2. Rare error with AdvDupe2
3. Rate limit on default duplicator being applied when not overridden
4. DarkRP persistence logic throwing error due to unassigned variable
5. Renamed internal ownership variables being used by other addons causing issues

Files affected:

1. lua/gmtoolbox/modules/advdupe2/sv_override.lua
2. lua/gmtoolbox/modules/duplicator/sh_override.lua
3. lua/gmtoolbox/modules/duplicator/sv_override.lua
4. lua/gmtoolbox/modules/hud/cl_entowner.lua
5. lua/gmtoolbox/modules/ownability/sv_playerdisconnect.lua
6. lua/gmtoolbox/modules/players/sv_ratelimitentspawns.lua
7. lua/gmtoolbox/sv_config.lua
8. lua/gmtoolbox/utils/cl_entmeta.lua
9. lua/gmtoolbox/utils/sv_entmeta.lua
10. lua/gmtoolbox/utils/sv_plymeta.lua