Parse disk pool for the job

Signed-off-by: Maria Shaldibina <mshaldibina@pivotal.io>
Use disk pool when creating disk

Signed-off-by: Maria Shaldibina <mshaldibina@pivotal.io>
Add logger to boshDeploymentParser

Signed-off-by: Maria Shaldibina <mshaldibina@pivotal.io>