Add script wrapper to establish Tower SCL and venv before running Python

tools/scripts/tower-python

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Enable needed Software Collections, if installed
+for scl in python27 httpd24; do
+  if [ -f /etc/scl/prefixes/$scl ]; then
+    if [ -f `cat /etc/scl/prefixes/$scl`/$scl/enable ]; then
+      . `cat /etc/scl/prefixes/$scl`/$scl/enable
+    fi
+  fi
+done
+
+# Enable Tower virtualenv
+if [ -f /var/lib/awx/venv/tower/bin/activate ]; then
+  . /var/lib/awx/venv/tower/bin/activate
+fi
+
+# Run the requested Python command, using the interpreter from the path
+python "$@"