add node script

apps/mknode

@@ -0,0 +1,21 @@
+#!/bin/bash
+PATH=$(dirname "$(readlink -f "${0}")")/..:$PATH
+DIR=/tmp/dwarf-portable-executable
+mkdir -p $DIR
+BASE=https://nodejs.org/dist/latest
+LINK="$BASE/$(curl -L $BASE | grep linux-x64.tar.xz | cut -d'"' -f2)"
+curl -L "$LINK" | bsdtar xf - -C$DIR
+
+mv $DIR/node* $DIR/node
+strip $DIR/node/bin/node
+cat > $DIR/node/AppRun << 'EOF'
+#!/bin/sh
+HERE=$(dirname $(readlink -f "${0}"))
+export PATH="${HERE}/bin":$PATH
+"${HERE}"/bin/$APPDWARF_CMD $@
+EOF
+chmod +x $DIR/node/AppRun
+
+appdwarf $DIR/node
+mv $DIR/node.sh node
+rm -rf $DIR/node