Adding support for Asheron's Benediction

[gmriggs]

This adds support for vital multiplier enchantments, such as Asheron's Benediction

For adding and removing enchantments which affect MaxVitals, an UpdateVital packet is also now sent much quicker, instead of on the next VitalTick update

This resolves #1607

[Warloxx01]

I applied this update and all went well till I went into combat in Metos (First try at combat after application of update) I noticed that I was not hitting anything and when I looked at the server window I saw this...
Error.txt
Im relatively certain I applied this corretley. It appears the spell hits the target the first time then never hit the target again.

[gmriggs]

@Warloxx01

The bug you are seeing unfortunately snuck into #1611

The fix has been posted in #1616

Thanks for helping to test everything!