Add ability to create db snapshots

[batconjurer]

Describe your changes

Resolves the first two points of Issue #3307:

• Add the ability to create chunkable snapshots to our rocksdb implementation
• Spawn a background task to create snapshots are certain blockheights

Specifically adds a config parameter that indicates after how many blocks a snapshot should be created. If set, then on the corresponding calls to commit, a background task is spun up that takes a snapshot of rocksDB and writes it in a convenient format to a file. This file contains metadata of how to be broken up into chunks. Once a new snapshot is created, older snapshots are removed.

Indicate on which release or other PRs this topic is based on

v0.39.0

Checklist before merging to draft

• I have added a changelog
• Git history is in acceptable state

[sug0]

left a couple of comments

[codecov]

Codecov Report

Attention: Patch coverage is 66.52893% with 81 lines in your changes missing coverage. Please review.

Project coverage is 53.93%. Comparing base (879a326) to head (f768ef9).
Report is 4 commits behind head on main.

Files	Patch %	Lines
crates/node/src/shims/abcipp_shim.rs	0.00%	58 Missing ⚠️
crates/node/src/storage/rocksdb.rs	92.14%	11 Missing ⚠️
crates/node/src/shims/abcipp_shim_types.rs	0.00%	6 Missing ⚠️
crates/storage/src/db.rs	0.00%	3 Missing ⚠️
crates/node/src/shell/mod.rs	91.30%	2 Missing ⚠️
crates/node/src/lib.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3383      +/-   ##
==========================================
+ Coverage   53.92%   53.93%   +0.01%     
==========================================
  Files         317      317              
  Lines      107575   107786     +211     
==========================================
+ Hits        58011    58137     +126     
- Misses      49564    49649      +85     

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