Add functions to handle ClaimInfoRequest and PersistClaimInfo events.

[G8XSU]

Based on #3067

• Add functions to handle ClaimInfoRequest and PersistClaimInfo events.

As part of #3049

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 63 lines in your changes missing coverage. Please review.

Project coverage is 89.68%. Comparing base (50d21b7) to head (c281700). Report is 357 commits behind head on main.

Files with missing lines	Patch %	Lines
lightning/src/chain/channelmonitor.rs	0.00%	28 Missing :warning:
lightning/src/events/mod.rs	0.00%	19 Missing :warning:
lightning/src/chain/chainmonitor.rs	0.00%	16 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3217      +/-   ##
==========================================
- Coverage   89.75%   89.68%   -0.08%     
==========================================
  Files         122      122              
  Lines      101791   101854      +63     
  Branches   101791   101854      +63     
==========================================
- Hits        91367    91350      -17     
- Misses       7743     7817      +74     
- Partials     2681     2687       +6     

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[G8XSU]

Merging this into #3106 as per feedback. Addressed most of the comments here, some might be unanswered. Will move some questions to 3106, and close the rest here.

[tnull]

Merging this into #3106 as per feedback.

Should this PR get closed then?

[G8XSU]

Yes, i will close this after answering some comments here.