OPNSense/core db4833e. plist, src/etc/inc interfaces.inc

interfaces: ppp-related changes from master

(cherry picked from commit cfc95122f2d248e61d03d8f1dbae3cbd40260196)
(cherry picked from commit 75c3100ba7fca08e874dfea7b40831781bdf7f74)
(cherry picked from commit be9a1c94ab0a96d7c3a1f94eedaa4c88c5275639)
DeltaFile
+0-66src/sbin/ppp-linkup
+62-0src/opnsense/scripts/interfaces/ppp-linkup.sh
+61-0src/opnsense/scripts/interfaces/ppp-linkdown.sh
+0-59src/sbin/ppp-linkdown
+12-17src/etc/inc/interfaces.inc
+4-4plist
+0-3src/sbin/ppp-uptime.sh
+3-0src/opnsense/scripts/interfaces/ppp-log-uptime.sh
+3-0src/opnsense/scripts/interfaces/ppp-uptime.sh
+0-3src/sbin/ppp-log-uptime.sh
+145-15210 files

UnifiedSplitRaw