- make sure HUD will only be displayed if valid data was received
- color infection message red
- fix for problem with dedicated servers (issue #19)
- add small HUD element to display the current infection protection value
- add config value to change the immunity duration
- change to two configs for Server and Client
- don't display protection HUD when in Spectator mode
- add current protection value display to player HUD
- add current protection value display to player HUD (support for 1.20.6 ended with 1.4.1)
- fix problem on Forge/NeoForge with drop rate for Contagious Flesh being only half of what it should be
- port to Forge for mc 1.20.1 (incl. drop rate fix for Contagious Flesh)