Move CAA provider type selector code to its own file #4113

Job	Run time
package-windows (store-app)	3m 16s
package-windows (signed-app)	2m 16s
package-windows (installer)	4m 29s
package-windows (portable)	3m 15s
package-macos (10.12, 3.9.12-macosx10.9, 7888174c6fe441b00448c7ab3e9cbf0e6c3c7dea0750577baf09e138...	3m 57s
package-macos (10.14, 3.11.5-macos11, c6cd76659bfb364c2ac63bc57f6b10c1e131a20170359c5d65e2d41fdc6...	4m 5s
package-pypi / pypi-bdist (macos-11, 3.7)	1m 38s
package-pypi / pypi-bdist (macos-11, 3.8)	1m 9s
package-pypi / pypi-bdist (macos-11, 3.9)	1m 15s
package-pypi / pypi-bdist (macos-11, 3.10)	1m 19s
package-pypi / pypi-bdist (macos-11, 3.11)	1m 10s
package-pypi / pypi-bdist (macos-11, 3.12.0-rc.1)	1m 58s
package-pypi / pypi-bdist (windows-2019, 3.7)	1m 23s
package-pypi / pypi-bdist (windows-2019, 3.8)	2m 21s
package-pypi / pypi-bdist (windows-2019, 3.9)	1m 39s
package-pypi / pypi-bdist (windows-2019, 3.10)	1m 57s
package-pypi / pypi-bdist (windows-2019, 3.11)	2m 1s
package-pypi / pypi-bdist (windows-2019, 3.12.0-rc.1)	2m 48s
package-pypi / pypi-sdist	34s
github-release	0s
	42m 30s

Provide feedback