Improve support for JsonSchema in CanvasForm

[lordrip]

Please describe the feature that you want to propose

Context

Currently, we're using uniforms-patternfly for rendering the forms, but there's only partial support for anyOf / oneOf, meaning that we can't support EIPs like resequence, because it has 2 elements inside of anyOf #794.

We also tried https://github.com/rjsf-team/react-jsonschema-form and while it has good support for anyOf / oneOf out of the box, it's not enough for the aforementioned resequence EIP.

In addition to that, we needed to add special handling starting from the Camel catalog generator up to the form library to support especial cases like Dataformat, Expression, Loadbalancer, etc, adding more maintenance to the project.

Goal

The goal for this ticket is to come up with a plan to improve this scenario so we can support more things out of the box and reduce the complexity of both the catalog generator and the form library handling.

The new approach to the CanvasForm should bring:

1. Remove the need to handle special cases like Dataformat, Expression, Loadbalancer.
2. Support multiple elements inside anyOf.
3. Support special EIPs like resequence out of the box.