[Remote Cluster State] Refactor BlobStoreformat classess

[soosinha]

Is your feature request related to a problem? Please describe

There are 2 classes (ChecksumBlobStoreFormat and BaseBlobStoreFormat) which have the logic for serde of XContent objects. For serde of Writable objects, a new class ChecksumWritableBlobStoreForamt has been created. Some methods like serialize and deserialize have duplicate logic in these classes. Also since the BaseBlobStoreFormat is applicable for XContent objects, it is difficult to extend this logic for other objects.

Describe the solution you'd like

Create a interface which provides generic methods to serde of different types of objects. The common logic will be to added header and footer with checksum.

Related component

Cluster Manager

Describe alternatives you've considered

No response

Additional context

No response

[rwali-aws]

[Triage - attendees 1 2 3 [4]https://github.com/akolarkunnu/ [5]https://github.com/lukas-vlcek/ [6]https://github.com/shiv0408/]

Thanks for filing this issue @soosinha . Can you please update the issue to expand a bit on "Some code has been duplicated across classes" and on the proposal around what common logic is proposed to be moved?