Change tenant network type usage for IB Fabric

This patch changes tenant network type usage for InfiniBand Fabric
to vlan type. Add the indication of Fabric Type (Ethernet/InfiniBand)
to the provider_network via the plugin configuration file.
If physical network type is not specified for some provider network
listed in the network_vlan_ranges, use default physical network type.

Co-authored-by: Roey Chen <roeyc@mellanox.com>
Change-Id: Id45acfb8234359a43303c2eee2205a44998c039a
Closes-Bug: 1263638
BigSwitch: Asynchronous rest calls for port create

Makes rest calls for port creation an async
operation so create_port calls immediately
return in a BUILD state.

Implements: blueprint bsn-port-async
Change-Id: Ib512a846fa878ec33205df08a3b2464b7ea0941a
Merge "BigSwitch: Asynchronous rest calls for port create"
Merge "Change tenant network type usage for IB Fabric"