* Create a case for routeros.
RouterOS doesn't support the bgpPeerInUpdateElapsedTime object, so when
LibreNMS does to insert a peer update into the database from a MikroTik
router, you see the following error:
SQLSTATE[22007]: Invalid datetime format: 1366 Incorrect integer value: '' for column `librenms`.`bgpPeers`.`bgpPeerInUpdateElapsedTime` at row 2 (Connection: mysql, SQL: UPDATE `bgpPeers` set `bgpPeerAdminStatus`=start,`bgpPeerInUpdateElapsedTime`=...
To fix this, special-case routeros and note that the object is not yet
supported.
* Use spaces, not tabs.
* Use set_numeric() to ensure bgpPeerInUpdateElapsedTime is a number.
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Co-authored-by: Joe Clarke <jclarke@cisco.com>