Clip points when adding selections in buffer_view

[ckissane]

• Adds a clip_point function in xray_core/src/buffer.rs
• Resolves 2 clipping related TODOs in xray_core/src/buffer_view.rs

[lee-dohm]

Thanks for the contribution.

Before we take a further look at this, we'll need you to remove the commits having to do with the nifty icon from the history. For legal reasons, we can't accept a commit like that, even one that is later reverted. You can use the git rebase --interactive command to rewrite the history to completely remove 38cf75a and 8e5a196, then use git push --force to push the rewritten history up to your fork.

[Arcanemagus]

If you want to save those commits somewhere before cleaning things up you should create a branch to save it with git branch mylogo 38cf75a.

You can remove those two commits using git rebase -i HEAD~4 to interactively rebase the last 4 commits, from the editor that comes up you can change pick to d or drop to remove those commits. Once the rebase finishes and everything looks correct you will need to force push the branch back up with git push --force.

For future PRs it's always a good idea to work on a separate branch so you don't run into issues like this later.