Add test coverage for ozi color setting options.

[GPSBabelDeveloper]

• Unit test ozi color commandline options.

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.05%	:white_check_mark: ∅

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (7617c21cb4ff0ced9881a1819d3657bbed6c8fa9) | 27586 | 17119 | 62.06% | | | Head commit (359fc835f60d15ef0d0a3e2b97542782a3019b1f) | 55181 (+27595) | 34273 (+17154) | 62.11% (**+0.05%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#1266) | 0 | 0 | **∅ (not applicable)** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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