ENH: Add first and last aggregations to Rolling and Expanding

[snitish]

• closes Feature request: first & last for rolling() #33155 (Replace xxxx with the GitHub issue number)
• Tests added and passed if fixing a bug or adding a new feature
• All code checks passed.
• Added type annotations to new arguments/methods/functions.
• Added an entry in the latest doc/source/whatsnew/v3.0.0.rst file if fixing a bug or adding a new feature.

[mroeschke]

Thanks for starting this @snitish.

Curious if we even need a Cython function for this? It seems we can replicate this with a take on the original data accounting for min_periods/window size

[snitish]

@mroeschke would take be able to handle NAs efficiently though? i.e. perform the aggregation in O(N) time as opposed to O(NW) (W = window)