sctcheck: add --check_inclusion option (#395)
sctcheck: add --check_inclusion option (#395)

Allow inclusion checking against source logs to be skipped so the
tool runs faster.
google/certificate-transparency-go,RJPercival/certificate-transparency-go,RJPercival/certificate-transparency-go,daviddrysdale/certificate-transparency-go,google/certificate-transparency-go,RJPercival/certificate-transparency-go,daviddrysdale/certificate-transparency-go,google/certificate-transparency-go,daviddrysdale/certificate-transparency-go