Add lua callback when life or armor is gained

[R00Ki3]

It would be nice to know when a player is healed from any source, by how much and what by. I'm not sure the best way to go about this. Either by adding an additional function or extending on an existing function like player_ondamage ?

Example:

function player_onheal( player, damageinfo? ) -- something like damageinfo?
    local Heal = damageinfo:GetHeal() -- Get Health Amount
    local Armor = damageinfo:GetArmor() -- Get Armor amount
    local Healer = damageinfo:GetHealer() -- Object or person doing the healing
    local Item = damageinfo:GetInflictor():GetClassName() -- Item doing the healing: Backpack, medkit, dispenser, ect.
end