Add -lpthread test dependency.
Add -lpthread test dependency.

libtetcoin/libtetcoin-node,libtetcoin/libtetcoin-node,libjetcoin/libjetcoin-node,libmetrocoin/libmetrocoin-node,libmetrocoin/libmetrocoin-node,libmetrocoin/libmetrocoin-node,libtetcoin/libtetcoin-node,libjetcoin/libjetcoin-node,libjetcoin/libjetcoin-node