Add a requirements.txt for pip
Add a requirements.txt for pip

Change-Id: I39fff0ad289b709c6c44d8c9dc53dfbd3abfd152

dmerejkowsky/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild