A user of the pipeline should be able to set, at a pipeline level, what parameters are required.

This is configuring the inputs as can be seen in parametrised jobs (so you can refer to the design for parametrised jobs if it helps, for the types of fields configurable).

In scope:

• User can set what fields are required and their type
• Design should also work when configuring "input" step type (even if input configuration is not implemented initially, as it is the same logic).