Release 1.8.0

What's Changed

• up the fim version by @kthare10 in #55
• request only slice state by @kthare10 in #56
• Advance Scheduling Improvements by @kthare10 in #57
• Rel1.8 - API changes for advance reservations by @kthare10 in #58

Full Changelog: rel1.7.0...rel1.8.0