feat: Implement block signing

[Neeharika-Sompalli]

Fixes #16421

• Implements TssShareSignatureHandler pre-handle logic
• Uses submitting TssShareSignature transactions when keyCandidateRoster flag is set and uses real ledger signature instead of mock signature

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.09% (target: -1.00%)	✅ 47.98%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (52a7fce)	96496	62808	65.09%
Head commit (ac39f29)	96629 (+133)	62811 (+3)	65.00% (-0.09%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#16462)	173	83	47.98%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codecov]

Codecov Report

Attention: Patch coverage is 46.24277% with 93 lines in your changes missing coverage. Please review.

Project coverage is 63.25%. Comparing base (52a7fce) to head (ac39f29).
Report is 3 commits behind head on develop.

Files with missing lines	Patch %	Lines
...ode/app/tss/handlers/TssShareSignatureHandler.java	16.66%	45 Missing ⚠️
...va/com/hedera/node/app/tss/TssBaseServiceImpl.java	23.40%	35 Missing and 1 partial ⚠️
...om/hedera/node/app/tss/TssKeyMaterialAccessor.java	74.19%	6 Missing and 2 partials ⚠️
...m/hedera/node/app/tss/handlers/TssSubmissions.java	84.61%	2 Missing ⚠️
...-app/src/main/java/com/hedera/node/app/Hedera.java	50.00%	1 Missing ⚠️
...app/workflows/standalone/TransactionExecutors.java	50.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #16462      +/-   ##
=============================================
- Coverage      63.35%   63.25%   -0.10%     
+ Complexity     20097    20084      -13     
=============================================
  Files           2527     2528       +1     
  Lines          93677    93810     +133     
  Branches        9804     9813       +9     
=============================================
- Hits           59347    59340       -7     
- Misses         30731    30861     +130     
- Partials        3599     3609      +10     

Files with missing lines	Coverage Δ
.../main/java/com/hedera/node/app/spi/AppContext.java	33.33% <ø> (ø)
...a/node/app/blocks/impl/BlockStreamManagerImpl.java	96.02% <100.00%> (ø)
...a/node/app/config/BootstrapConfigProviderImpl.java	87.50% <100.00%> (+0.54%)	⬆️
...a/com/hedera/node/app/services/AppContextImpl.java	100.00% <ø> (ø)
...com/hedera/node/app/tss/PlaceholderTssLibrary.java	72.34% <ø> (+4.25%)	⬆️
...n/java/com/hedera/node/app/tss/TssBaseService.java	25.00% <ø> (ø)
...edera/node/app/tss/handlers/TssMessageHandler.java	97.05% <100.00%> (-2.95%)	⬇️
...dera/node/app/workflows/handle/HandleWorkflow.java	83.85% <100.00%> (+1.55%)	⬆️
...in/java/com/hedera/node/config/data/TssConfig.java	100.00% <ø> (ø)
...latform/state/service/ReadableRosterStoreImpl.java	82.60% <100.00%> (+2.60%)	⬆️
... and 6 more

... and 18 files with indirect coverage changes