[Datapacks] Add ability to compare NBT number values!

I am a datapack creator, and I LOVE doing so! But I keep running into problems that could only be fixed if I could compare values from NBT storage and/or entity NBT (ex: playerNBTInteger > entityAttackInteger). Having these kinds of operations and comparisons only available to scoreboards don’t make any sense, and only end up being laggy for scoreboard-related workarounds. Adding this feature into datapacks would be extremely beneficial to the experience of the creators and the players by extension.