Add ogcli list hardware command

This requests GET /hardware by calling something like:
ogcli list hardware --scope-id=6

It is important to notice that 'scope-id' must be a "computer" type scope id.

cli/cli.py

@@ -48,16 +48,18 @@ class OgCLI():
 		self.rest = OgREST(cfg['ip'], cfg['port'], cfg['api_token'])
 
 	def list(self, args):
-		choices = ['clients', 'scopes', 'modes']
+		choices = ['clients', 'scopes', 'modes', 'hardware']
 		parser = argparse.ArgumentParser()
 		parser.add_argument('item', choices=choices)
-		args = parser.parse_args(args)
+		parsed_args = parser.parse_args([args[0]])
 
-		if args.item == 'clients':
+		if parsed_args.item == 'clients':
 			OgClient.list_clients(self.rest)
-		elif args.item == 'modes':
+		elif parsed_args.item == 'hardware':
+			OgClient.list_client_hardware(self.rest, args[1:])
+		elif parsed_args.item == 'modes':
 			OgModes.list_available_modes(self.rest)
-		elif args.item == 'scopes':
+		elif parsed_args.item == 'scopes':
 			OgScope.list_scopes(self.rest)
 
 	def set(self, args):

cli/objects/client.py

@@ -6,9 +6,25 @@
 # Free Software Foundation, version 3.
 #
 
+import argparse
+
 class OgClient():
 
 	@staticmethod
 	def list_clients(rest):
 		r = rest.get('/clients')
 		print(r.json())
+
+	@staticmethod
+	def list_client_hardware(rest, args):
+		parser = argparse.ArgumentParser()
+		parser.add_argument('--scope-id',
+				    nargs=1,
+				    required=True,
+				    help='ID of the computer scope')
+		parsed_args = parser.parse_args(args)
+
+		payload = {'scope': {'id': int(parsed_args.scope_id[0]),
+				     'type': 'computer'}}
+		r = rest.get('/hardware', payload=payload)
+		print(r.json())