Features/update forms

[anilnatha]

Purpose

Reorganized contents under /job/new and added new forms to support L1A and L1B PGEs.

Proposed Changes

• Updated /job/new endpoint so it lists the applications for which jobs may be executed.
• Moved chirp rebinning job form to /jobs/new/chirp
• Added job submission forms for L1A and L1B PGEs
• Added process utility to help facilitate changes listed above.
• Removed hard-coded values from chirp rebinning job form.

Issues

• https://github.com/unity-sds/unity-ui/issues/14
• https://github.com/unity-sds/unity-ui/issues/15