Rename files to remove 'og' prefix

This prefix is redundant on almost every file, so the prefix is removed from
filenames and imports.

cli/cli.py

@@ -1,6 +1,6 @@
-from ogcli.objects.og_client import OgClient
-from ogcli.objects.og_scopes import OgScope
-from ogcli.objects.modes import OgModes
+from cli.objects.client import OgClient
+from cli.objects.scopes import OgScope
+from cli.objects.modes import OgModes
 import argparse
 import requests
 import sys

ogcli

@@ -1,6 +1,6 @@
 #!/usr/bin/python
 
-from ogcli.ogcli import OgCLI
+from cli.cli import OgCLI
 import argparse
 import json
 import sys