Add cpu accessor for job manifest
Add cpu accessor for job manifest

[#163462295] Allow `cpu` to be used as an accessor for jobs

Signed-off-by: Shaan Sapra <eebb259cb9f45c3d1ef59f26c24c808d8f5aa8e3@pivotal.io>

pivotal-cf-experimental/ops-manager-example,pivotal-cf-experimental/ops-manager-example,pivotal-cf-experimental/ops-manager-example,pivotal-cf-experimental/ops-manager-example