Support extraObjects block in helm chart

[narfeta]

Is your feature request related to a problem? Please describe.
When installing Odigos using Helm, there's currently no option to create resources necessary for accessing the UI. For example, in my case, we use Istio, and I have to manually create a VirtualService outside of the Helm chart.

Describe the solution you'd like
I would like to see an extraObjects: [] block added to the values.yaml file, which would allow users to define and create additional resources (such as VirtualService) alongside the Helm chart during installation.

I’m happy to open a PR with this change if it's something you'd like to include.