[Spike] Load dynamically custom web component from URL hosted in the kubernetes cluster

[pbochynski]

Description
With this issue it was proven that the custom module UI can be rendered in the iframe. The goal of this spike is to load custom web component from the resources loaded from cluster.

Acceptance criteria:

• create custom web component that is loaded dynamically
• use ui5 components inside the custom component to verify if we can reuse components bundled with busola
• Check if CSSes are working correctly (if some style will be changed in the busola, check if it automatically is changed in the component)
• Check performance

Timebox for SPIKE: 2-3 working days

[mrCherry97]

PoC is ready in connected PR, follow up task is created.