Introduce "query_name" predicate

[nbacquey]

Description

This PR introduces an optional predicate #query_name!, that will be displayed in logs.

For instance, this query:

(
  (#query_name! "comma spacing")
  "," @append_space
  .
  (_)
)

will produce the following log line:

[2024-10-08T15:48:13Z INFO  topiary_core::tree_sitter] Processing match of query "comma spacing": LocalQueryMatch { pattern_index: 17, captures: [ {Node "," (1,3) - (1,4)} ] } at location (286,1)

It also triggers an error when encountering an unknown predicate, instead of silently ignoring it (which caused problems during prior developments).

Closes #681

Checklist

Checklist before merging:

• CHANGELOG.md updated
• README.md up-to-date

[Xophmeister]

Nice 👍

I think your comment in the example (in the README) isn't right -- see comment 👇 -- but it's been a while since I looked into this! Please could you double-check?