* Add -own_trusted option to CMP app
* Add OSSL_CMP_CTX_build_cert_chain()
* Add optional trust store arg to ossl_cmp_build_cert_chain()
* Extend the tests in cmp_protect_test.c and the documentation accordingly
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12791)