Add a suite for consensus node communication

[AntiD2ta]

Is your feature request related to a problem? Please describe.
The beacon nodes or consensus nodes offer a API with which you can check things such as validator and sync status. We would provide good access to such API so it would be great to use it to give the user useful information.

Describe the solution you'd like
A new cmd can be made to make requests given a network, because Ethereum API may be different from other PoS network to which we can add support. At least we should implement:

• Check sync status
• Check validator status and performance. This involves checking balance, missed attestations, etc.

Additional context
This can be used for alerting support

[AntiD2ta]

This is what Posmoni is about, so closing this...