Adding `gvm linkthis` command
Adding `gvm linkthis` command

This links the current project into the $GOPATH/src to allow `go get` to
find the local development copy instead of the one on GitHub (or
wherever)

Signed-off-by: Dan Buch <8f3d1908ccda908e9391b1a7c3b33c665d505bc0@modcloth.com>

runcom/gvm,jmaurice/gvm,markeissler/gvm2,jmptrader/gvm,vestel/gvm,nikolas/gvm,jmaurice/gvm,moovweb/gvm,jmaurice/gvm,jbussdieker/gvm,runcom/gvm,jbussdieker/gvm,runcom/gvm,moovweb/gvm,nikolas/gvm,vestel/gvm,ilons/gvm,runcom/gvm,miguel250/gvm,markeissler/gvm-test,nikolas/gvm,markeissler/gvm2,jbussdieker/gvm,tumf/gvm,kei-yamazaki/gvm,jbussdieker/gvm,jmptrader/gvm,kei-yamazaki/gvm,jmaurice/gvm,miguel250/gvm,markeissler/gvm-test,AHaymond/gvm,markeissler/gvm2,ilons/gvm,tumf/gvm,nikolas/gvm,AHaymond/gvm