Validation feel expressions do not respect local context

[Skaiir]

Describe the Bug

At the moment we evaluate feel expressions in the validation parameters not against the local context of the field being validated, but the root data context. This is incorrect and makes using feel validations in dynamic lists not work as expected.

Steps to Reproduce

1. add a feel validation on a child of a dynamic list
2. it is not possible to use this.value, or any of the context related values here

Expected Behavior

2. feel expressions should evaluate within the local context

[Skaiir]

Closed via #1155