Allow Setting Item Damage Through Item Modifiers As Non-Percentage Based

Currently, there are two ways I know of to set an item's durability for the /item command. Below are two examples of item modifiers to illustrate my point:

1. "minecraft:set_durability " (Percentage-based but allows objects):

# "damage" can take floats or objects but is 0% - 100% of max durability

{
  "function": "minecraft:set_damage",
  "damage": {
    "type": "minecraft:score",
    "target": {
      "type": "minecraft:fixed",
      "name": "@s"
    },
    "score": "board_name",
    "scale": 1
  },
  "add": true,
  "conditions": []
}

Although you can use a scoreboard object, the problem with the function above is that it is percentage-based and will scale differently depending on the max durability of the item in question. So you cannot reliably reduce the durability by 1. 

2. "minecraft:set_components" (int only):

# "minecraft:damage" can only take ints. 
{
  "function": "minecraft:set_components",
  "components": {
    "minecraft:damage": 1
  }
}