add normalize/processColorObject.js for ios and macos

[marlenecota]

Please select one of the following

• I am removing an existing difference between facebook/react-native and microsoft/react-native 👍
• I am cherry-picking a change from Facebook's react-native into microsoft/react-native 👍
• I am making a fix / change for the macOS implementation of react-native
• I am making a change required for Microsoft usage of react-native

Description of changes

Renamed SemanticOrDynamicColorType to NativeOrDynamicColorType.
Split out the logic in processColor.js and normalizeColor.js that deals with handling color objects into their own files (processColorObject.js and normalizeColorObject.js)
Added ios and macos implementation of color object handling.

Microsoft Reviewers: Open in CodeFlow

[analysis-bot]

Code analysis results:

• eslint found some issues.
• flow found some issues.

[pull-bot]

	Messages
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Generated by 🚫 dangerJS against e199a91

[analysis-bot]

Code analysis results:

• flow found some issues.
• eslint found some issues.

[analysis-bot]

Code analysis results:

• flow found some issues.
• eslint found some issues.

[analysis-bot]

Code analysis results:

• flow found some issues.

[analysis-bot]

Code analysis results:

• flow found some issues.

[analysis-bot]

Code analysis results:

• flow found some issues.

[analysis-bot]

Code analysis results:

• flow found some issues.

[analysis-bot]

Code analysis results:

• flow found some issues.