import haproxy template

Change-Id: I74c8fee4a18489b03218baeadc895e563aa347fe
modify haroxy for proxying external services

Change-Id: I6d4d531e412d87e3ccf2a4b7ac464ac197b3831b
Merge pull request #4 from freerunningtech/outbound_proxy

Modify the haproxy recipe to allow proxying to external services