Add NDN Play integration to Mini-NDN code base

Integrate the minindn_play project by Varun Patil into
the base Mini-NDN codebase; this will allow for the
use of the NDN-Play browser UI with minimal additional
dependencies or setup.

Refs #5359

Change-Id: I4fedfa885b07d7fe946a18c6d9b5016d291b3582
diff --git a/util/pkgdep/common.sh b/util/pkgdep/common.sh
index 62ab1ee..4035ef6 100644
--- a/util/pkgdep/common.sh
+++ b/util/pkgdep/common.sh
@@ -304,6 +304,10 @@
 DESTDIR=/usr/local/etc/mini-ndn
 $SUDO install -d -m0755 "$DESTDIR"
 find topologies/ -name '*.conf' | xargs $SUDO install -m0644 -t "$DESTDIR/"
+
+echo "Installing Python dependencies"
+$SUDO $PYTHON -m pip install -r requirements.txt
+
 $SUDO $PYTHON setup.py develop
 
 echo 'MiniNDN installation completed successfully'