Refactored and update Location Geocoding (#9359)

- Fix location so it is a regular database relation (this allows multiple devices to be accurately linked to one location and saves api calls)
- Parse coordinates from the location more consistently
- Add settings to webui
- ~~Used [PHP Geocoder](http://geocoder-php.org/), which has lots of backends and is well tested. (also includes reverse and geoip)~~
- Google Maps, Bing, Mapquest, and OpenStreetMap supported initially.
- Default to OpenStreetMap, which doesn't require a key.  They will liberally hand out bans if you exceed 1 query per second though.
- All other Geocoding APIs require an API key. (Google requires a credit card on file, but seems to be the most accurate)
- Update all (I think) sql queries to handle the new structure
- Remove final vestiges of override_sysLocation as a device attribute
- Update existing device groups and rules in DB
- Tested all APIs with good/bad location, no/bad/good key, and no connection.
- Cannot fix advanced queries that use location

This blocks #8868

DO NOT DELETE THIS TEXT

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html/network-map.php

@@ -36,10 +36,11 @@ if (isset($config['branding']) && is_array($config['branding'])) {
     }
 }
 
+$where = '';
+$param = [];
 if (is_numeric($_GET['device']) && isset($_GET['device'])) {
-    $where = 'WHERE device_id = '.mres($_GET['device']);
-} else {
-    $where = '';
+    $where = '&& device_id = ?';
+    $param[] = $_GET['device'];
 }
 
 // FIXME this shit probably needs tidied up.
@@ -57,7 +58,7 @@ if (isset($_GET['format']) && preg_match("/^[a-z]*$/", $_GET['format'])) {
     } else {
         $loc_count = 1;
 
-        foreach (dbFetch("SELECT * from devices ".$where) as $device) {
+        foreach (dbFetch("SELECT *, locations.location from devices,locations WHERE devices.location_id = locations.id ".$where, $param) as $device) {
             if ($device) {
                 $links = dbFetch("SELECT * from ports AS I, links AS L WHERE I.device_id = ? AND L.local_port_id = I.port_id ORDER BY L.remote_hostname", array($device['device_id']));
                 if (count($links)) {