Improve CFDP Unit Tests

[pepepr08]

Related Issue(s)
Has Unit Tests (y/n)	y
Documentation Included (y/n)	n
Generative AI was used in this contribution (y/n)	y

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Change Description

Pull request to address unit tests related comments at: nasa#5138

Summary of comments in CFDP-merge PR:

1. Fix 8 of 9 new async commands have no test coverage.
2. ~53 of 55 new events have no ASSERT_EVENTS_* coverage
3. fix None of the 10 new parameters have paramSet_* / paramGet_* test coverage.
4. New async input port dataReturnIn has no test invocation.
5. SendFile (the only tested command) lacks failure-path coverage.
6. Multi-instance ports (dataOut, dataIn, bufferAllocate, etc.) are exercised on channel 0 for most test paths.
7. Telemetry counter assertions use EXPECT_GE lower bounds instead of exact values.

Rationale

Improve

Testing/Review Recommendations

Ran CfdpManager Unit Tests. Coverage now at ~89%

Future Work

Improve coverage

AI Usage (see policy)

Planning, code generation and debugging