Add PngWriteDefines to Magick.NET #914

Job	Run time
Library (Core)	5m 6s
Linux musl (Q8/Q16/Q16-HDRI, x64)	2m 18s
Linux (Q8/Q16/Q16-HDRI, x64)	2m 35s
Library (SystemDrawing)	5m 2s
MacOS (Q8/Q16/Q16-HDRI)	2m 30s
Library (SystemWindowsMedia)	6m 18s
MacOS (Q8/Q16/Q16-HDRI, arm64)	1m 39s
Windows (Q8, x86)	6m 18s
Windows (Q8, x64)	6m 25s
Windows (Q8, arm64)	6m 24s
Windows (Q8, Any CPU)	6m 27s
Windows (Q8-OpenMP, x64)	6m 25s
Windows (Q8-OpenMP, arm64)	6m 26s
Windows (Q16, x86)	6m 26s
Windows (Q16, x64)	6m 26s
Windows (Q16, arm64)	6m 28s
Windows (Q16, Any CPU)	6m 28s
Windows (Q16-OpenMP, x64)	6m 26s
Windows (Q16-OpenMP, arm64)	6m 26s
Windows (Q16-HDRI, x86)	6m 26s
Windows (Q16-HDRI, x64)	6m 19s
Windows (Q16-HDRI, arm64)	5m 41s
Windows (Q16-HDRI, Any CPU)	6m 27s
Windows (Q16-HDRI-OpenMP, x64)	6m 24s
Windows (Q16-HDRI-OpenMP, arm64)	6m 29s
	2h 20m 19s

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