refactor(@angular/build): export compiler plugin and stylesheet optio… #2785

Job	Run time
list	24s
workflow (modules-builder-tests)	1m 57s
workflow (build-cli)	1m 41s
workflow (devkit-core-tests)	1m 26s
workflow (build-unit-tests)	2m 37s
workflow (devkit-core-tests-rerun)	1m 30s
	9m 35s

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