Allow overriding wxSizer.InformFirstDirection() #169

Job	Run time
Build wxPython documentation	0s
build-source-dist	8m 19s
build-wheels (ubuntu-22.04, 3.9, x64)	23m 49s
build-wheels (ubuntu-22.04, 3.13, x64)	24m 1s
build-wheels (windows-2022, 3.9, x86)	23m 57s
build-wheels (windows-2022, 3.9, x64)	21m 41s
build-wheels (windows-2022, 3.13, x86)	23m 26s
build-wheels (windows-2022, 3.13, x64)	22m 21s
build-wheels (macos-13, 3.9, x64)	36m 28s
build-wheels (macos-13, 3.13, x64)	35m 44s
Publish Python distribution to PyPI	0s
Upload wheels to snapshot-builds on wxpython.org	0s
Create GitHub Release and upload source	0s
	3h 39m 46s

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