AWS Lambda support

**Additional context**
We support visualisation and scanning for AWS Fargate but Lambda is neither visualised currently not scans are supported at runtime.

**Describe the solution you'd like**
Show a separate topology dashboard for Lambda (also for k8s, vms, fargate in addition to current multicloud view). Once this is done, allow on demand scanning (this bit needs to be figured out for sure but I do see AWS APIs to grab contents/files out of lambda)

**Components/Services**

- [x] UI/Frontend
- [x] API/Backend
- [ ] Agent
- [ ] Deployment/YAMLs
- [ ] CI/CD Integration
- [ ] Other (specify)

**Additional context**
Add any other context or screenshots about the feature request here.