Made side effects sieve objects too.

src/lib-sieve/plugins/copy/ext-copy.c

src/lib-sieve/plugins/imapflags/ext-imapflags-common.h

src/lib-sieve/plugins/imapflags/ext-imapflags.c

src/lib-sieve/plugins/imapflags/tag-flags.c

src/lib-sieve/sieve-actions.c

src/lib-sieve/sieve-actions.h

src/lib-sieve/sieve-address-parts.h

src/lib-sieve/sieve-code.c

src/lib-sieve/sieve-code.h

src/lib-sieve/sieve-comparators.h

src/lib-sieve/sieve-match-types.h

src/lib-sieve/sieve-objects.c

src/lib-sieve/sieve-objects.h