crypto: store received room key bundle data information

[richvdh]

Add hooks to the memory store and sqlite store to stash the information about room key data.

Fixes #4512

[codecov]

Codecov Report

Attention: Patch coverage is 52.54237% with 28 lines in your changes missing coverage. Please review.

Project coverage is 85.91%. Comparing base (1554e05) to head (a3cb1cd).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/matrix-sdk-sqlite/src/crypto_store.rs	24.13%	22 Missing ⚠️
crates/matrix-sdk-crypto/src/store/memorystore.rs	66.66%	3 Missing ⚠️
crates/matrix-sdk-crypto/src/machine/mod.rs	81.81%	2 Missing ⚠️
crates/matrix-sdk-crypto/src/store/traits.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4932      +/-   ##
==========================================
- Coverage   85.98%   85.91%   -0.07%     
==========================================
  Files         325      325              
  Lines       35654    35690      +36     
==========================================
+ Hits        30657    30663       +6     
- Misses       4997     5027      +30     

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[poljar]

Looks good. I left a couple of nits.