Rebase operation support

[ddymko]

Add support for

1.	pre-rebase: This hook is called before rebasing. It can be used to halt the rebase process if certain conditions are not met.
2.	post-rewrite: This hook runs after commands like git commit --amend and git rebase. It is passed a list of rewritten commits.

Note Both of these commands can send $1

pre-rebase:

•	Description: Run before rebasing is started.
•	$1: The upstream branch being rebased onto.

post-rewrite:

•	Description: Run after commands that rewrite commits (e.g., git commit --amend, git rebase).
•	$1: Command that triggered the rewrite (amend or rebase).