Adds TestUpdateDocWithAttachments.
Adds TestUpdateDocWithAttachments.

z000z/couchbase-lite-net,couchbase/couchbase-lite-net,brettharrisonzya/couchbase-lite-net,JiboStore/couchbase-lite-net,couchbase/couchbase-lite-net,JiboStore/couchbase-lite-net,couchbase/couchbase-lite-net,mpapp/couchbase-lite-net,mpapp/couchbase-lite-net,z000z/couchbase-lite-net,brettharrisonzya/couchbase-lite-net