add wheel creation script, usage

assume bullet3 is located in ~/dev/bullet3 and run this docker command from ~

sudo docker run -it -v $(pwd):/io quay.io/pypa/manylinux2014_x86_64

then in the docker
cd io/dev/bullet3
./wheel.sh

after exit of docker, the wheels are in ~/wheelhouse
and can be uploaded to pypi

wheel.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+set -e -x
+
+
+# Compile wheels
+for PYBIN in /opt/python/*/bin; do
+    "${PYBIN}/pip" install -r /io/dev/bullet3/requirements.txt
+    "${PYBIN}/pip" wheel /io/dev/bullet3 -w wheelhouse/
+done
+
+# Bundle external shared libraries into the wheels
+for whl in wheelhouse/*.whl; do
+    auditwheel repair "$whl"  -w /io/wheelhouse/
+done
+
+# Install packages and test
+for PYBIN in /opt/python/*/bin/; do
+    "${PYBIN}/pip" install python-manylinux-demo --no-index -f /io/wheelhouse
+    (cd "$HOME"; "${PYBIN}/nosetests" pymanylinuxdemo)
+done
+