tcp half open checks on standard ports

[epacke]

It would be nice to have HTTP, CURL, and Netcat links populated on TTYPE_TYPE_HALF_OPEN checks where the target is on 80, 443, and perhaps other common ones like 8080, 8000, 8443. 443 and 8443 would assume SSL unless that can be computed by the pool usage elsewhere.

Old issue had comments:
epacke/BigIPReport#79

Conclusion was to add netcat links to tcp monitors