feat: Initial consensus node to block node communication

[petreze]

Description:
This PR improves and provides an implementation of gRPC streaming to block nodes. This implementation is subject to change and only provides a happy path for streaming.

Addition of Block Node Connection Management

• New Protocol Buffers Definition: Added a new internal protocol buffers file network/block_node_connections.proto to define the configuration for connecting to block nodes. This includes messages for individual block node configurations and overall connection configurations.

• Configuration Files: Added a new JSON configuration file hedera-node/configuration/dev/block-nodes.json to specify block node connection details, as an example.

Java Class Modifications

• Hedera.java: Updated the Hedera class to initialize block node connections, handle their shutdown during different platform statuses, and ensure connections are established before starting the platform.

• HederaInjectionComponent.java: Added a new method to provide the BlockNodeConnectionManager.

• ServicesMain.java: Modified the main method to initialize block node connections before starting the platform.

Dependency Injection and Module Updates

• BlockStreamModule.java: Updated the BlockStreamModule to provide the BlockNodeConnectionManager and handle different block stream writer modes, including a new mode for both file and gRPC streaming.

Related issue(s):

Fixes #17730

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[codecov]

Codecov Report

Attention: Patch coverage is 18.67704% with 209 lines in your changes missing coverage. Please review.

Project coverage is 68.92%. Comparing base (0515075) to head (3ac9098).

Files with missing lines	Patch %	Lines
...cks/impl/streaming/BlockNodeConnectionManager.java	9.01%	110 Missing and 1 partial ⚠️
...app/blocks/impl/streaming/BlockNodeConnection.java	0.00%	49 Missing ⚠️
...app/blocks/impl/streaming/GrpcBlockItemWriter.java	25.00%	18 Missing and 3 partials ⚠️
...-app/src/main/java/com/hedera/node/app/Hedera.java	28.57%	19 Missing and 1 partial ⚠️
...rc/main/java/com/hedera/node/app/ServicesMain.java	0.00%	3 Missing ⚠️
...era/node/app/blocks/impl/streaming/BlockState.java	0.00%	2 Missing ⚠️
.../com/hedera/node/app/blocks/BlockStreamModule.java	75.00%	1 Missing ⚠️
...a/node/app/blocks/impl/BlockStreamManagerImpl.java	0.00%	0 Missing and 1 partial ⚠️
...com/hedera/node/config/data/BlockStreamConfig.java	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #17769      +/-   ##
============================================
- Coverage     69.01%   68.92%   -0.10%     
- Complexity    23050    23060      +10     
============================================
  Files          2655     2659       +4     
  Lines         99675    99829     +154     
  Branches      10289    10297       +8     
============================================
+ Hits          68795    68809      +14     
- Misses        26981    27121     +140     
  Partials       3899     3899              

Files with missing lines	Coverage Δ
...locks/impl/streaming/BlockNodeConfigExtractor.java	100.00% <100.00%> (ø)
...app/blocks/impl/streaming/FileBlockItemWriter.java	72.22% <ø> (ø)
...edera/node/config/types/BlockStreamWriterMode.java	100.00% <100.00%> (ø)
.../com/hedera/node/app/blocks/BlockStreamModule.java	75.00% <75.00%> (+15.00%)	⬆️
...a/node/app/blocks/impl/BlockStreamManagerImpl.java	95.37% <0.00%> (ø)
...com/hedera/node/config/data/BlockStreamConfig.java	50.00% <0.00%> (-50.00%)	⬇️
...era/node/app/blocks/impl/streaming/BlockState.java	0.00% <0.00%> (ø)
...rc/main/java/com/hedera/node/app/ServicesMain.java	27.21% <0.00%> (-0.57%)	⬇️
...-app/src/main/java/com/hedera/node/app/Hedera.java	48.95% <28.57%> (-1.79%)	⬇️
...app/blocks/impl/streaming/GrpcBlockItemWriter.java	25.00% <25.00%> (ø)
... and 2 more

... and 8 files with indirect coverage changes

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.10% (target: -1.00%)	✅ 21.40%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (0515075)	99458	72533	72.93%
Head commit (3ac9098)	99612 (+154)	72547 (+14)	72.83% (-0.10%)

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 (#17769)	257	55	21.40%

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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_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more}

[mhess-swl]

Ok I had a lot of thoughts while reviewing this, but I also recognize that 1) this is not the final production code we'll be using, and 2) I haven't been very involved in writing/coordinating this code for the past couple weeks. As long as this code is working we're probably fine to push off quite a few of my comments, and revisit them later.

[mhess-swl]

I added a few more comments as a reminder, but they can be addressed later (feel free to resolve them whenever). Thanks @petreze @MiroslavGatsanoga and @derektriley, this is a lot of work! 🙌