cli: add repo.py object

A user can list repos using "ogcli list repos":

$ ogcli list repos
{
    "repositories": [
        {
            "id": 1,
            "ip": "10.141.10.1",
            "name": "Repositorio (Default)"
        },
        {
            "id": 3,
            "ip": "127.0.0.1",
            "name": "dummy"
        },
        {
            "id": 4,
            "ip": "192.168.21.21",
            "name": "helloworld"
        }
    ]
}

The repository of a client or group of clients in a room is configured
using "ogcli set repo --id <id> [--client-ip <ip address>, --room-id
<room id>]:

$ ogcli set repo --id 4 --room-id 1

1 files changed, 7 insertions, 2 deletions

diff --git a/cli/cli.py b/cli/cli.py
index 579ab03..de344e5 100644
--- a/cli/cli.py
+++ b/cli/cli.py
@@ -13,6 +13,7 @@ from cli.objects.images import OgImage
 from cli.objects.disks import OgDisk
 from cli.objects.poweroff import OgPoweroff
 from cli.objects.reboot import OgReboot
+from cli.objects.repo import OgRepo
 from cli.objects.server import OgServer
 import argparse
 import requests
@@ -70,7 +71,7 @@ class OgCLI():
     def list(self, args):
         choices = ['clients', 'scopes', 'modes', 'hardware',
                    'client', 'images', 'disks', 'server',
-                   'servers']
+                   'servers', 'repos']
         parser = argparse.ArgumentParser(prog='ogcli list')
         parser.add_argument('item', choices=choices)
 
@@ -94,11 +95,13 @@ class OgCLI():
             OgImage.list_images(self.rest)
         elif parsed_args.item == 'disks':
             OgDisk.list_disks(self.rest, args[1:])
+        elif parsed_args.item == 'repos':
+            OgRepo.list_repos(self.rest)
         elif parsed_args.item in ['server', 'servers']:
             OgServer.list_servers(self.rest)
 
     def set(self, args):
-        choices = ['modes', 'mode', 'server']
+        choices = ['modes', 'mode', 'server', 'repo']
         parser = argparse.ArgumentParser(prog='ogcli set')
         parser.add_argument('item', choices=choices)
 
@@ -110,6 +113,8 @@ class OgCLI():
         parsed_args = parser.parse_args([args[0]])
         if parsed_args.item in ['modes', 'mode']:
             OgModes.set_modes(self.rest, args[1:])
+        elif parsed_args.item == 'repo':
+            OgRepo.set_repo(self.rest, args[1:])
         elif parsed_args.item == 'server':
             OgServer.set_server(self.rest, args[1:])