Should remain backwards compatible with 1.13. Removed blocks/items will
be forwarded to the "replacement" block/item. (e.g. BlockTypes.SIGN will
find OAK_SIGN on 1.14.)
They now additionally take a direction in which the simulated item usage
should be facing.
Also allow the item parser to parse "hand" and "offhand" as items, to
allow platforms with NBT item support return items with NBT (since
parsing is a slightly more complex task).
If multiple namespaces are present, suggestions will first suggest a
namespace, then once a namespace is selected, keys within that namespace.
Starting an argument with ":" will instead search across all namespaces
for matching keys.
Later registered parsers will always come before the default, ensuring
that the default parser is used when no other parser can match the input,
and that errors may be thrown by it to signify the end of the line.
All patterns now have suggestions, including recursive patterns.
Suggestions will suggest blocks and block states.
All masks now have suggestions, though mask intersections are not
yet supported due to issues with quotes strings.
EntityRemover and ItemFactory now also have completions, as well
as all RegistryConverters (though I am unsure how many are actually
used).
Also use paper's AsyncTabComplete event, if available.
For example, if you set a mask that takes an extent (many of them),
and then move to another world, the mask will test blocks in the old
world and return bad results.
Add better control over expression timeouts.
* //timeout command can be used to change player's current timeout.
* Config now also has a max timeout, can be bypassed with permission
* Timeout of < 0 will let expressions run indefinitely.
* Said expressions won't run on a separate thread, slightly reducing the
overhead from context switching. For large //gen commands, for example,
this can actually increase speed.
