MINIFICPP-2558 Revamp site to site communication

[lordgamez]

• Fix communicating with remote output port
• Add handling of remote port batch size properties
• Extend port management in config generation in docker integration tests
• Make input port in remote process groups optional (as using only output ports can also be a valid configuration)
• Add additional testing
• Refactor RPG and site to site clients
• Additional documentation

https://issues.apache.org/jira/browse/MINIFICPP-2565

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[Copilot]

Pull Request Overview

This PR revamps the Site-to-Site communication along with renaming and updating references to Remote Process Group ports. Key changes include renaming “RemoteProcessorGroupPort” to “RemoteProcessGroupPort” across headers and tests, adding new properties (such as batch size/count/duration and use compression), and updating configuration serializers and documentation to reflect these changes.

Reviewed Changes

Copilot reviewed 54 out of 54 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
libminifi/include/core/reporting/SiteToSiteProvenanceReportingTask.h	Updated include and inheritance to use RemoteProcessGroupPort
libminifi/include/core/flow/StructuredConnectionParser.h	Renamed helper function to handle both funnels and ports
libminifi/include/core/flow/FlowSchema.h	Added definitions for new RPG port properties
libminifi/include/RemoteProcessGroupPort.h	Renamed the port class, changed integer types, added timeout and batch property getters/setters, and updated related logic
Test and serializer files	Aligned test case names and updated dynamic casts to use RemoteProcessGroupPort
Documentation files	Updated SITE_TO_SITE.md and README.md to include Site-to-Site communication details

Comments suppressed due to low confidence (1)

extensions/standard-processors/tests/unit/YamlConfigurationTests.cpp:226

• [nitpick] Verify that the updated test case tag (dropping the version number) conforms with the project's overall test naming conventions.

TEST_CASE("Test YAML v3 Invalid Type", "[YamlConfiguration]") {