Formatter: Retain information on Bracket Expressions #156

Currently, Bracket Expression Parsers can return any ParsedExpression and the information about the bracket expression is lost during the parsing.

Therefore, when using the code-formatter, the Bracket Expressions are replaced by their Parsed-Expression equivalent, which is not optimal for formatting scripts.

Example:

println(<item:minecraft:bedrock>.commandString);

// becomes after a re-format
println(BracketHandlers.getItem("minecraft:bedrock").commandString);

Possible Fixes/Ideas:

• Optionally attach a custom Tag to Parsed expressions which will be used in the code-formatter if present.
  return expression.hasTag(FormattingInfo.class) ? expression.getTag(FormattingInfo.class).format() : expression.accept(formatterVisitor);