Device Components.

The purpose of this feature is to provide a framework for discovery modules to store
information in the database, without needing to add new tables for each feature.

This Feature provides:
- A database structure to store data.
- An API to store and retrieve data from the database.
- Integration to the LibreNMS APIv0.
- Ability to disable/ignore components.
- Default alerting rules.

- The API returns $COMPONENT[$device_id][$component_id] to allow pulling of data for multiple devices.
  The intent is to be able to create 'Applications' the consolidate data from applications covering multiple devices.
- Added some developer documentation

html/includes/functions.inc.php

@@ -1156,6 +1156,16 @@ function alert_details($details) {
             $fallback      = false;
         }
 
+        if ($tmp_alerts['type'] && $tmp_alerts['label']) {
+            if ($tmp_alerts['error'] == "") {
+                $fault_detail .= ' '.$tmp_alerts['type'].' - '.$tmp_alerts['label'].'; ';
+            }
+            else {
+                $fault_detail .= ' '.$tmp_alerts['type'].' - '.$tmp_alerts['label'].' - '.$tmp_alerts['error'].'; ';
+            }
+            $fallback      = false;
+        }
+
         if ($fallback === true) {
             foreach ($tmp_alerts as $k => $v) {
                 if (!empty($v) && $k != 'device_id' && (stristr($k, 'id') || stristr($k, 'desc') || stristr($k, 'msg')) && substr_count($k, '_') <= 1) {