[sovereign] Add factory for NodesSetupChecker to override it easily.

[raress96]

Reasoning behind the pull request

We need to override the NodesSetupChecker easily for a Sovereign Chain from the sovereignNodeRunner.go file. This way we can have mx-chain-go as a dependency of a Sovereign Chain GO project and not have to fork the code.

Currently this can be overwritten by implementing a custom managedProcessComponents and processComponentsFactory, but the processComponentsFactory Create method has a lot of logic that we would not want to maintain, hence we need an easier way to override the NodesSetupChecker

Proposed changes

Added a NodesSetupCheckerFactory and a NodeSetupChecker interface to allow easier customization.

Testing procedure

Pre-requisites

Based on the Contributing Guidelines the PR author and the reviewers must check the following requirements are met:

• was the PR targeted to the correct branch?
• if this is a larger feature that probably needs more than one PR, is there a feat branch created?
• if this is a feat branch merging, do all satellite projects have a proper tag inside go.mod?