Include memory option to Snapshots

Fixes #84

Author: Manisha15

lib/fog/proxmox/compute/models/snapshot.rb

@@ -51,7 +51,7 @@ def initialize(new_attributes = {})
 
         def save
           path_params = { node: node_id, type: server_type, vmid: server_id }
-          body_params = { snapname: name }
+          body_params = { snapname: name, vmstate: vmstate }
           server.tasks.wait_for(service.create_snapshot(path_params, body_params))
         end
 

spec/compute_spec.rb

@@ -277,15 +277,16 @@
 
   it 'CRUD snapshots' do
     VCR.use_cassette('snapshots') do
-      node_name = 'pve'
+      node_name = 'proxmox-noris'
       node = @service.nodes.get node_name
       vmid = node.servers.next_id
       server_hash = { vmid: vmid }
       node.servers.create server_hash
       # Create
       snapname = 'snapshot1'
+      vmstate = 0
       server = node.servers.get vmid
-      snapshot_hash = { name: snapname }
+      snapshot_hash = { name: snapname, vmstate: vmstate }
       server.snapshots.create(snapshot_hash)
       # Find by id
       snapshot = server.snapshots.get snapname