MINIFICPP-2668 Move standard processor tests to modular docker tests

[lordgamez]

https://issues.apache.org/jira/browse/MINIFICPP-2668

Depends on #2059

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[Copilot]

Pull Request Overview

This PR migrates standard processor tests from the legacy docker integration test framework to the newer modular behave-based test framework. The changes consolidate testing infrastructure by removing duplicate processor implementations and container classes from the old framework.

Key changes:

• Adds new container implementations (TcpClientContainer, DiagSlave) to the modular test framework
• Updates 8 feature files to use the new framework's syntax and step definitions
• Removes deprecated processor and container classes from the old docker integration framework
• Extends the behave framework with new step definitions and helper methods

Reviewed Changes

Copilot reviewed 26 out of 26 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tcp_client_container.py	New TCP client container for network listener tests
diag_slave_container.py	New DiagSlave container for Modbus testing
steps.py	Adds step definitions for PLC/Modbus and TCP client setup
*.feature files (8 files)	Migrated to new framework syntax with updated assertions
environment.py	Adds platform detection for x86/x64-only tests
core_steps.py	New steps for file creation and FIPS mode
checking_steps.py	New assertion steps for JSON and empty file validation
container.py	Enhanced with JSON validation and debug print statement
minifi_container.py	Adds FIPS mode support
Old framework files	Removes deprecated processor/container implementations

Comments suppressed due to low confidence (1)

extensions/standard-processors/tests/features/defragtextflowfiles.feature:42

• The expected output appears to have changed from having one '<1>,' to two '<1>,<1>,' at the beginning. This change affects multiple test scenarios (lines 42 and 69). Ensure this change reflects the actual expected behavior and that corresponding tests verify this is correct, as this could indicate a change in how the DefragmentText processor handles end-of-message patterns.

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