Added nbt_storage() scapet function (#655)

* Added storage() scarpet function

Allows you to easly manage vanilla data command storage

* Added docs and uniformed with scoreboard()

storage(key, nbt) will now return the previous value to be consistant with the scoreboard() command.

* Included imports

* Renamed storage function to nbt_storage

* Update docs/scarpet/api/Auxiliary.md

Co-authored-by: gnembon <41132274+gnembon@users.noreply.github.com>

docs/scarpet/api/Auxiliary.md

@@ -540,3 +540,9 @@ Available options in the scarpet app space:
  
  Scarpet related properties
  * `scarpet_version` - returns the version of the carpet your scarpet comes with.
+
+## NBT Storage
+
+### `nbt_storage()`, `nbt_storage(key)`, `nbt_storage(key, nbt)`
+Displays or modifies individual storage NBT tags. With no arguments, returns the list of current NBT storages. With specified `key`, returns the `nbt` associated with current `key`, or `null` if storage does not exist. With specified `key` and `nbt`, sets a new `nbt` value, returning previous value associated with the `key`.
+NOTE: This NBT storage is shared with all vanilla datapacks and scripts of the entire server and is persistent between restarts and reloads. You can also access this NBT storage with vanilla `/data <get|modify|merge> storage <key> ...` command.

docs/scarpet/resources/editors/idea/2.txt

@@ -67,6 +67,7 @@ map_colour
 material
 modify
 nbt
+nbt_storage
 neighbours
 opacity
 parse_nbt

docs/scarpet/resources/editors/npp/scarpet.xml

@@ -86,6 +86,8 @@
 
                 load_app_data store_app_data read_file write_file delete_file list_files
                 escape_nbt parse_nbt encode_nbt tag_matches statistic
+
+                nbt_storage
             </Keywords>
             <Keywords name="Keywords3">euler pi null true false</Keywords>
             <Keywords name="Keywords4">x y z p</Keywords>