added availability zone proto (#271)

* added availability zone proto

* updated pb.go

* added status and virtualMachine reference in av zone

* added av zone reference in virtual machine proto

* updated virtual machine reference number

* updated avzone reference number

* ran make generate

* updated vitualMachineRef object

* updated avzonereference in vm

* updated avzonereference in vm

* added groupName property

* after make generate

* removed some properties

* moved availability zone to cloud

* moved the files to cloud

* added av zone update operation enum

* adding roles for avzones

* fixed indentation

* added precheck API of av zone

* :Revert "added precheck API of av zone"

This reverts commit 2720915.

* added precheck API of av zone

* updated name to zone

* built locally

* Revert "built locally"

This reverts commit c83fe87.

* make generate changes

common/roles.go

@@ -71,6 +71,8 @@ const (
 	SecretContributorRoleName = "SecretContributor"
 	// AvailabilitySet Contributor Role - has permissions to run any operations on AvailabilitySets
 	AvailabilitySetContributorRoleName = "AvailabilitySetContributor"
+	// Zone Contributor Role - has permissions to run any operations on Zones
+	ZoneContributorRoleName = "ZoneContributor"
 	// Location Reader role - has permissions to run read operations on locations
 	LocationReaderRoleName = "LocationReader"
 	// Group Reader Role - has permissions to run read operations on the group resource
@@ -133,4 +135,6 @@ const (
 	AvailabilitySetReaderRoleName = "AvailabilitySetReader"
 	// Certificate Signer Role - has permissions to run sign and renew operations on Certificates
 	CertSignerRoleName = "CertificateSigner"
+	// Zone Reader Role - has permissions to run read operations on Zones
+	ZoneReaderRoleName = "ZoneReader"
 )