Allow blank list for updating firewall

Allow blank list for below members of firewall's UpdateOpts.

• Rules
• CustomApplications
• ApplicationSets
• RoutingGroupSettings

Add name and bandwidth parameters to ecl connection update

Add parameters to ecl connection update (#11)

* Add parameters to ecl connection update

* Modify doc in ecl connection update

Support additional parameters in Router to GCP Connection

Add the following parameters in Router to GCP Connection

• connection.source.primary.med.out
• connection.source.secondary.med.out
• connection.area
• connection.bandwidth

Fix a bug related to Endpoint

Fix a bug that duplicate "fic-eri" appears in Endpoint

Add med in router to port connections

Add med in router to port connections (#8)

* Fix status code in TestCreateGlobalIPAddressSet

* Add MED field in creating and updating router to port connections

* Make MED field pointer to handle omitempty

* Update docs in router to port connections

Fix bugs of global ip address sets, aws and gcp connections

• Fix status code creating and deleting global ip address sets to 200
• Fix API method updating aws and gcp connections to PATCH

Resolve package name duplication

• Change package layout to resolve package name duplication go-fic and fic packages

Support FIC-Connection Azure

Support for following resources:

• Port to Azure (Microsoft Peering) Connection
• Port to Azure (Private Peering) Connection
• Router to Azure (Microsoft Peering) Connection
• Router to Azure (Private Peering) Connection

Initial release

Support for following resources

• Areas
• Operations
• Port to AWS Connections
• Port to GCP Connections
• Port to Port Connections
• Ports
• Router Paired to_AWS Connections
• Router Paired to GCP Connections
• Router Paired to Port Connections
• Router Single to AWS Connections
• Router Single to GCP Connections
• Router Single to_port Connections
• Router to ECL Connections
• Router to UNO Connections
• Routers
• Switches