[feature request] Support cherrypick and fastforward operations

[gabeiglio]

Feature Request / Improvement

In an effort to support WAP in PyIceberg there is work undergoing for implementing staged snapshots (issue). We would also need to support cherrypicking and fastworward to reference the staged snapshot as the current one.

[Hanglet0n]

Thank you for filling @gabeiglio. Is there any estimated timeline for the implementation of cherry-picking and fast-forwarding in Pyiceberg?

[gabeiglio]

@Hanglet0n Hi! sorry for the late reply but it looks like there is work being done in this PR!