Create postgres and cobbler data directories
Create postgres and cobbler data directories

These directories get created automatically by Docker,
but ensuring them is good.

Change-Id: Id81ed77cabc2b6c91e0d4a4d08f416e1f84001f5
Partial-Bug: #1469399

huntxu/fuel-library,ddepaoli3/fuel-library-dev,xarses/fuel-library,xarses/fuel-library,xarses/fuel-library,stackforge/fuel-library,eayunstack/fuel-library,huntxu/fuel-library,xarses/fuel-library,huntxu/fuel-library,stackforge/fuel-library,ddepaoli3/fuel-library-dev,ddepaoli3/fuel-library-dev,eayunstack/fuel-library,eayunstack/fuel-library,huntxu/fuel-library,eayunstack/fuel-library,ddepaoli3/fuel-library-dev,eayunstack/fuel-library,stackforge/fuel-library,stackforge/fuel-library,huntxu/fuel-library,ddepaoli3/fuel-library-dev