Add go 1.8 specific jobs and buckets
Add go 1.8 specific jobs and buckets

[#159861609](https://www.pivotaltracker.com/story/show/159861609)

Co-authored-by: Luan Santos <509a85c757dc22c0257f4655fb3fb682d42f965b@pivotal.io>

gu-bin/bosh-agent,mattcui/bosh-agent,mattcui/bosh-agent,cloudfoundry/bosh-agent,gu-bin/bosh-agent,gu-bin/bosh-agent,mattcui/bosh-agent,cloudfoundry/bosh-agent