benchmarks/fhourstones: New MASTER_SITES to unbreak, move executable
This port was broken due to being unfetchable. While finding a new
source location, switch the executable from lib/fhourstones to
libexec/fhourstones. Also, use "sed" and "echo" to eliminate the
need for patches.
Some changes were made to the submitted patch by me, but they were minor.
Submitted by: Ports Fury