Include eclass for new nodejs ebuilds

New packages (zigbee2mqtt and node-red) from my gentoo overlay (https://github.com/inode64/inode64-overlay)

app-misc/node-red/files/node-red

@@ -0,0 +1,17 @@
+#!/sbin/openrc-run
+
+depend() {
+	after mosquitto
+}
+
+start() {
+	ebegin "Starting ${SVCNAME}"
+	start-stop-daemon --start --user node-red:node-red --chdir /usr/lib64/node_modules/node-red/packages/node_modules/node-red/ --exec /usr/bin/npm --background --make-pidfile --pidfile /run/${SVCNAME}.pid -- start
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping ${SVCNAME}"
+	start-stop-daemon --stop --quiet --retry 10 --pidfile /run/${SVCNAME}.pid
+	eend $?
+}

app-misc/node-red/files/node-red.conf

@@ -0,0 +1 @@
+d /var/lib/node-red 0750 node-red node-red

app-misc/node-red/files/node-red.service

@@ -0,0 +1,42 @@
+[Unit]
+Description=node-red
+After=network.target
+After=mosquitto.service
+
+[Service]
+ExecStart=npm start
+WorkingDirectory=/usr/lib64/node_modules/node-red/packages/node_modules/node-red/
+StandardOutput=inherit
+StandardError=inherit
+Restart=always
+User=node-red
+
+CapabilityBoundingSet=
+NoNewPrivileges=true
+RemoveIPC=true
+LockPersonality=true
+
+ProtectControlGroups=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectKernelLogs=true
+ProtectHostname=true
+ProtectProc=noaccess
+ProtectClock=yes
+DeviceAllow=char-* rw
+
+RestrictRealtime=true
+RestrictSUIDSGID=true
+RestrictNamespaces=true
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+
+ProtectSystem=strict
+ProtectHome=true
+PrivateTmp=true
+ReadWritePaths=/var/lib/node-red
+
+SystemCallArchitectures=native
+SystemCallFilter=@system-service @pkey
+
+[Install]
+WantedBy=multi-user.target