ogcli: ignore SIGPIPE

# ogcli list scope | less
 ... leave it open for one minute, then press 'q' to exit less

 it shows:

Traceback (most recent call last):
  File "/usr/bin/ogcli", line 60, in <module>
    CLI()
  File "/usr/bin/ogcli", line 56, in __init__
    getattr(self.ogcli, args.command)(sys.argv[2:])
  File "/opt/opengnsys/bin/cli/cli.py", line 93, in list
    OgScope.list_scopes(self.rest)
  File "/opt/opengnsys/bin/cli/objects/scopes.py", line 18, in list_scopes
    print_json(r.text)
  File "/opt/opengnsys/bin/cli/utils.py", line 34, in print_json
    print(json.dumps(payload, sort_keys=True, indent=2))
BrokenPipeError: [Errno 32] Broken pipe

It seems that the request library in python leaves the socket open
while it still displays the listing.

Ignore SIGPIPE which reports that socket is not there anymore, it is
a common practise to ignore this signal in socket.

ogcli

@@ -10,6 +10,7 @@
 from inspect import ismethod, getmembers
 
 from cli.cli import OgCLI
+import signal
 import argparse
 import json
 import sys
@@ -19,6 +20,7 @@ OG_CLI_CFG_PATH = "/opt/opengnsys/etc/ogcli.json"
 
 class CLI():
     def __init__(self):
+        signal.signal(signal.SIGPIPE, signal.SIG_IGN)
         try:
             with open(OG_CLI_CFG_PATH, 'r') as json_file:
                 self.cfg = json.load(json_file)