Bug: UI and Management endpoints not available

[shubhendumadhukar]

Describe the bug
If http/https/http2 protocols are disabled, Camouflage UI and management endpoints such as /ping and /restart are not available.

To Reproduce
Steps to reproduce the behavior:

1. Disable http/https/http2 protocols via config.yml
2. Start camouflage server.
3. Access Camouflage Homepage. eg. http://localhost:8080/

Expected behavior
Even though aforementioned protocols are disabled, UI and management endpoints should still be available.

[shubhendumadhukar]

Fixing it would require reserving an additional port for a 3rd express app

1. http/https/http mock server app;
2. Prometheus metrics server app;
3. UI and Management Endpoints app;

This adds unnecessary complexity in config.yml. Documentation updated necessary warnings. Might fix in future if absolutely required.