Implement Dynamic Editable IF Window

[fconlon]

Dependent on Issue #108

• [ ] Criteria 1
• [ ] Criteria 2
• [ ] Criteria 3
• [ ] Criteria 4

Criteria 1

Given:

• A project with a valid IF is loaded

When:

• The IF Info Window is displayed

Then:

• A + button should be visible

Criteria 2

Given:

• A project with a valid IF is loaded
• The IF has one or more fields

When:

• The IF Info Window is displayed

Then:

• A - button should be visible next to each field

Criteria 3

Given:

• A project with a valid IF is loaded
• The IF window is open

When:

• The + button is clicked

Then:

• A new field should be added to the IF window

Criteria 4

Given:

• A project with a valid IF is loaded
• The IF has one or more fields
• The IF window is open

When:

• A - button is clicked

Then:

• The corresponding field should be removed from the IF Info window