feat(@schematics/angular): add a '.prettierrc' file to generated work… #2656

Job	Run time
build-e2e-windows	25s
build	26s
lint	2m 3s
e2e-windows	-1s
Browser Compatibility Tests	0s
e2e-snapshots	0s
test	0s
publish-snapshots	0s
e2e	0s
e2e-package-managers	0s
	2m 53s

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