epic(scanner): Implement Heureka Kubernetes Container Scanner

[lolaapenna]

The goal is to implement Kubernetes Container Scanners that will act as a tool for creating an inventory of all Kubernetes containers in our environment.
This will offer a complete view of all the container instances being utilised by all services.

Issues:

• feat(scanner): Implement Self-Contained Kubernetes Container Scanner #110
• feat(scanner): Implement the Scanner Layer for Kubernetes Container Scanner - #111
• feat(scanner): Implement Deployment for Kubernetes Container Scanner #112
• feat(scanner): Implement the Process Component for Kubernetes Container Scanner #113
• feat(scanner): Define/Implement Entities for Kubernetes Container Scanner #114
• feat(scanner): Get K8s Service Account for each(All) Cluster #115
• feat(scanner): Integrate GraphQL Client for K8s scanner #158

[lolaapenna]

There is an interdependency with GH inter-cluster connectivity challenge.

For the MVP, we:

• deploy scanner per cluster.
• make the assumption that the clusters can all reach the centrally deployed Heureka.
• equip scanners with read-only service acount