Pack format

pack_format, sometimes referred to as pack_version, is a version number used to group versions with compatible assets. This number is used in:
* version.json
* 
== Resources ==
This number is used to declare the format of a resource pack in . Below is a list of all valid formats with corresponding versions.
== Data ==
This number is used to declare the format of a data pack in . Below is a list of all valid formats with corresponding versions.