[IM] bird2 template - set name for syslog

[listerr]

Longer description

When logging to syslog, set a name for the BIRD instance so we can tell which instance is logging to syslog:

Sep 20 15:01:59 rs1 bird[]: Reconfiguring
Sep 20 15:02:00 rs1 bird[]: Reconfigured
Sep 20 15:02:00 rs1 bird[]: I/O loop cycle took 5490.380 ms for 80 events
Sep 20 15:03:59 rs1 bird[]: Reconfiguring
Sep 20 15:03:00 rs1 bird[]: Reconfigured
Sep 20 15:02:13 rs1 bird[]: pb_0367_as57099: Received: Connection rejected
Sep 20 15:02:26 rs1 bird[]: pb_0690_as203421: Received: Connection rejected
Sep 20 15:02:37 rs1 bird[]: pb_0367_as57099: Received: Connection rejected
Sep 20 15:02:56 rs1 bird[]: pb_0690_as203421: Received: Connection rejected
Sep 20 15:03:05 rs1 bird[]: pb_0367_as57099: Received: Connection rejected

vs:

Sep 20 15:01:59 rs1 bird-rs1-ipv4[]: Reconfiguring
Sep 20 15:02:00 rs1 bird-rs1-ipv4[]: Reconfigured
Sep 20 15:02:00 rs1 bird-rs1-ipv4[]: I/O loop cycle took 5490.380 ms for 80 events
Sep 20 15:03:59 rs1 bird-rs1-ipv6[]: Reconfiguring
Sep 20 15:03:00 rs1 bird-rs1-ipv6[]: Reconfigured
Sep 20 15:02:00 rs1 bird-rs1-ipv6[]: I/O loop cycle took 5490.380 ms for 80 events
Sep 20 15:02:13 rs1 bird-rs1-ipv4[]: pb_0367_as57099: Received: Connection rejected
Sep 20 15:02:26 rs1 bird-rs1-ipv6[]: pb_0690_as203421: Received: Connection rejected
Sep 20 15:02:37 rs1 bird-rs1-ipv4[]: pb_0367_as57099: Received: Connection rejected
Sep 20 15:02:56 rs1 bird-rs1-ipv4[]: pb_0690_as203421: Received: Connection rejected
Sep 20 15:03:05 rs1 bird-rs1-ipv4[]: pb_0367_as57099: Received: Connection rejected

In addition to the above, I have:

• ensured all relevant template output is escaped to avoid XSS attached with <?= $t->ee( $data ) ?> or equivalent.
• ensured appropriate checks against user privilege / resources accessed
• API calls (particular for add/edit/delete/toggle) are not implemented with GET and use CSRF tokens to avoid CSRF attacks