Add parsing for base64 filters #4414

Job	Run time
package-deb-x64	3m 57s
package-generic-linux-aarch64	6m 10s
package-generic-linux-x64	3m 3s
package-macos-aarch64	2m 53s
package-macos-x64	7m 26s
package-windows-x64	21m 45s
test-dockerfile-x64	3m 36s
test-generic-linux-on-docker-fedora-x64	41s
test-generic-linux-on-docker-archlinux-x64	4m 19s
test-generic-linux-on-docker-debian-x64	59s
test-generic-linux-on-docker-ubuntu-x64	1m 34s
package-anatomy	0s
	56m 23s

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