device: Added and Updated Blue Coat device support (#8664)

* Blue Coat device updates

* Blue Coat device updates

* Updated PHP code per @laf comments

* YAML update for Packetshaper

* SSL Visibility YAML and snmprec file

* Cleanup problematic MIB files which should not have been there

* Reset Packetshaper YAML to original

* Added json test data

html/includes/graphs/device/sgos_client_connections_idle.inc.php

@@ -0,0 +1,18 @@
+<?php
+
+$rrd_filename = rrd_name($device['hostname'], 'sgos_client_connections_idle');
+
+require 'includes/graphs/common.inc.php';
+
+$ds = 'client_conn_idle';
+
+$colour_area = '9999cc';
+$colour_line = 'ff0000';
+
+$colour_area_max = '9999cc';
+
+$scale_min = '0';
+
+$unit_text = 'Idle Conn';
+
+require 'includes/graphs/generic_simplex.inc.php';