bc_cccp: Add copyright

Change-Id: Ia67d6b1c55d661e2aad0e7f9d084c303b4332e36
Reviewed-on: http://review.couchbase.org/33172
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Tested-by: Mark Nunberg <mnunberg@haskalah.org>