missing fields in manage program UI form

[bhavikbhagat93]

Description

When the user is creating a new program (on Dev), There is no UI input field to select the datacenter information.

This leads to null value in DB for the data center id.

Acceptance criteria

Repurpose the region field

• Rename "region" to "Data center" field
• Fetch data center from Program service DB and show data as drop down.
• User should be able to select the data center and submit the program
• This should lead to program creation with null values

[demariadaniel]

Screenshots showing fields added to UI, with completion messages for Create Program & Update Program
incorporates API changes: icgc-argo/platform-ui#2754
(note: Program Service still needs a few updates for create/update program)

[demariadaniel]

Additional Create screen: