Flying while using Baritone

## Describe your suggestion
I suggest to make possible for Baritone to assume flying, why not only for building or breaking in layers so that it is not too complicated to manage the flying path, but juste make possible to build in air, or break things from below without placing temp blocks which makes Baritone struggle.

## Settings
Flying

## Context
As explained it would avoid Baritone from struggling with temp blocks in some builds

## Final checklist
- [x] I know how to properly use check boxes
- [x] I have not used any OwO's or UwU's in this issue.

No files, tests, or entry points are named. Start by tracing the existing Flying setting and temporary-block handling for layered building and breaking; define the supported flight cases and verify Baritone can build in air or break from below without temporary blocks.

Written by the indexing model from the issue text.