Convert gluon-announce Lua code to C modules, rename to gluon-respondd

...an-adv-core/files/lib/gluon/announce/statistics.d/gateway

...an-adv-core/files/lib/gluon/announce/statistics.d/traffic

package/gluon-mesh-batman-adv-core/src/Makefile

package/gluon-mesh-batman-adv-core/src/respondd.c

package/gluon-mesh-vpn-fastd/Makefile

...-fastd/files/lib/gluon/announce/nodeinfo.d/software/fastd

...-vpn-fastd/files/lib/gluon/announce/statistics.d/mesh_vpn

package/gluon-mesh-vpn-fastd/src/Makefile

package/gluon-mesh-vpn-fastd/src/respondd.c

package/gluon-node-info/Makefile

...on-node-info/files/lib/gluon/announce/nodeinfo.d/location

...gluon-node-info/files/lib/gluon/announce/nodeinfo.d/owner

...node-info/files/lib/gluon/announce/nodeinfo.d/system/role

package/gluon-node-info/src/Makefile

package/gluon-node-info/src/respondd.c

package/gluon-respondd/Makefile

...luon-respondd/files/etc/hotplug.d/iface/10-gluon-respondd

.../gluon-respondd/files/lib/gluon/respondd/neighbours.cache

...ge/gluon-respondd/files/lib/gluon/respondd/nodeinfo.cache

.../gluon-respondd/files/lib/gluon/respondd/statistics.cache