Rename dnshook and fix-net

..to snf-network-dnshook and snf-network-hook correspondingly.

Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>

diff --git a/dnshook b/snf-network-dnshook
similarity index 100%
rename from dnshook
rename to snf-network-dnshook

diff --git a/fix-net b/snf-network-hook
similarity index 100%
rename from fix-net
rename to snf-network-hook