feat!: capsules & query API

[ObserverOfTime]

Breaking changes are marked with !.

Additions:

• Node.child_containing_descendant(descendant)
• Tree.language (getter)
• Query.pattern_count (getter)
• Query.capture_count (getter)
• Query.match_limit (getter)
• Query.did_exceed_match_limit (getter)
• Query.set_match_limit(match_limit): returns self
• Query.set_max_start_depth(max_start_depth): returns self
• Query.set_byte_range(byte_range): returns self
• Query.set_point_range(point_range): returns self
• Query.disable_pattern(index): returns self
• Query.disable_capture(capture): returns self
• Query.pattern_settings(index)
• Query.pattern_assertions(index)
• Query.start_byte_for_pattern(index)
• Query.end_byte_for_pattern(index)
• Query.is_pattern_rooted(index)
• Query.is_pattern_non_local(index)
• Query.is_pattern_guaranteed_at_step(offset)
• QueryError (exception class)
• QueryPredicate (typing protocol)

Removals:

• Parser.set_language(language)
• Parser.set_included_ranges(ranges)
• Parser.set_timeout_micros(timeout)
• Node.sexp()
• Tree.text()
• TreeCursor.goto_first_child_for_point(row, column)
• LookaheadIterator.reset(language, state)

Changes:

• Language() accepts a capsule as an argument.
• Parser.parse(...) no longer accepts a keep_text argument.
• Query.captures(...) !
  • Range arguments were removed (use set_* instead).
  • Added an argument for custom query predicates.
  • Return type was changed to dict[str, list[Node]].
• Query.matches(...) !
  • Range arguments were removed (use set_* instead).
  • Added an argument for custom query predicates.
  • Return type was changed to list[tuple[int, dict[str, list[Node]]]].
• TreeCursor.goto_first_child_for_byte(byte) returns int | None.
• TreeCursor.goto_first_child_for_point(point) returns int | None.