Declinable Death Messages

Now the mod works only on the client

Added a system for replacing the death message with '[death message].by.[mod ID].[entity]/[name].message'
Added a hover tooltip system with the original death message if advanced tooltips are enabled for the Show Original Message config

Added Decline Entities Config (enabled by default)
Added Grammar Adaptation for Death Messages config (enabled by default)
Added Show Original Message config (disabled by default)