Add tests for reading and writing digital lines with varying lines pe…

[alynch-ni]

…r channel

• [x] This contribution adheres to CONTRIBUTING.md.

What does this Pull Request accomplish?

This pull request adds two tests that validate reading and writing digital lines when multiple ports are active with different line counts. The tests are written to work with a PXIe-6363 with 32 lines on port 0 and 8 lines on ports 1 and 2. The tests ensure that the reads and writes complete successfully and provide minimal data validation.

The linter also corrected one line with incorrect style which I included in the PR.

Why should this Pull Request be merged?

Increase test coverage

What testing has been done?

Tests were run locally and pass

[github-actions[bot]]

Test Results

    34 files  ± 0      34 suites  ±0   51m 13s :stopwatch: -2s  2 348 tests + 4   1 994 :white_check_mark: + 2    354 :zzz: + 2  0 :x: ±0  42 272 runs  +68  36 020 :white_check_mark: +34  6 252 :zzz: +34  0 :x: ±0 

Results for commit 63db35e9. ± Comparison against base commit 19a9d477.

:recycle: This comment has been updated with latest results.