Add ToO request templates to Swift Facility

[phycodurus]

The Swift Facility should pre-fill the ToO request fields according to a set of configurations defined in the SwiftProfile. Additionally, Profiles should work at the User Group level (but this is a tom_base issue).

• add Guest Investigator field to SwiftProfile
• add Model for SwiftConfiguration
• add drop-down to SwiftForm to select an available SwiftConfiguration
• connect the selected SwiftConfiguration to form.initial