I searched for such a thing but I didn't find it.
I would like to request an addon which allows to display the amount of magicka restored while fighting, for example with the light armor skill, or when we kill an enemy with mage's fury.
Just to be certain:
You want to be informed everytime your mana increaes during combat and if that mana comes from normal magiva regen (including light armor and racials) or any special class abilities/procs/weapon enchantment.
I am pretty certain combat trackign adons can at least show you skill based magica influx.
We cannot differentiate between the magica regen you have normally and the one you get from light armor/racial. In the end they all work towards one value.