Add support for filter by due datetime in Tasks

Also added extra detail to connection error reporting.

In support of - RogerSelwyn/O365-HomeAssistant#130

Author: RogerSelwyn

O365/connection.py

@@ -792,14 +792,22 @@ def _internal_request(self, request_obj, url, method, **kwargs):
                 try:
                     error = response.json()
                     error_message = error.get('error', {}).get('message', '')
+                    error_code = (
+                        error.get("error", {}).get("innerError", "").get("code", "")
+                    )
                 except ValueError:
                     error_message = ''
+                    error_code = ''
 
                 status_code = int(e.response.status_code / 100)
                 if status_code == 4:
                     # Client Error
                     # Logged as error. Could be a library error or Api changes
-                    log.error('Client Error: {} | Error Message: {}'.format(str(e), error_message))
+                    log.error(
+                        "Client Error: {} | Error Message: {} | Error Code: {}".format(
+                            str(e), error_message, error_code
+                        )
+                    )
                 else:
                     # Server Error
                     log.debug('Server Error: {}'.format(str(e)))

O365/utils/utils.py

@@ -599,6 +599,7 @@ class Query:
         'to': 'toRecipients/emailAddress/address',
         'start': 'start/DateTime',
         'end': 'end/DateTime',
+        'due': 'duedatetime/DateTime',
         'flag': 'flag/flagStatus',
         'body': 'body/content'
     }