Add HideFlags for item and unbreakable

[matahombres]

https://minecraft.gamepedia.com/Tutorials/Command_NBT_tags

HideFlags

Add hideflag because when you go put into nbt you need sum the numbers.

Adding 1 will hide Enchantments
Adding 2 will hide Attributes modifiers
Adding 4 will hide Unbreakable
Adding 8 will hide CanDestroy
Adding 16 will hide CanPlaceOn
Adding 32 will hide Others, such as potion effects & shield pattern info

So you don't have to continually go to the wiki in case you don't know
The unbreakable is not absolutely necessary, but i also added it

[codeHusky]

I don't know what the purpose of this PR is.

[matahombres]

Only comfort.
Not the same:

nbt {
  HideFlags=5
}

that

hide_enchantments=true
hide_unbreakable=true

I consider it easier

[codeHusky]

While this is a useful addition, the way this is implemented is not incredibly clean, nor does it match the existing configuration options in terms of naming. This is a good idea though and I'll keep this open until either I implement this in form with the rest of the configuration, or this is tweaked to match the rest of the project.