Bind Inputs in Sunstone to user quotas

[tinova]

Description

If a user has quotas for, say, CPU, Sunstone should guide and constrain the CPU a user can request for a VM.

This will serve two purposes:

• guide the user
• avoid mistakes that lead to invalid requests

Progress Status

• [ ] Code committed
• [ ] Testing - QA
• [ ] Documentation (Release notes - resolved issues, compatibility, known issues)