Krishna/add graph to self heal

[0xKrishna]

Description

This PR will

• Remove rpc calls from self-heal as they are not working due block range limit
• Add support for graph for the same
• Remove redundant and unused code and fix bugs due to which self-heal is not working

Changes

• Bugfix (non-breaking change that solves an issue)
• Hotfix (change that solves an urgent issue, and requires immediate attention)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Changes only for a subset of nodes

Nodes audience

This will be only used on a couple of internal nodes for self-heal and debugging

Checklist

• I have added at least 2 reviewer or the whole pos-v1 team
• I have added sufficient documentation in code
• I will be resolving comments - if any - by pushing each fix in a separate commit and linking the commit hash in the comment reply

Cross repository changes

• This PR requires changes to bor
  • In case link the PR here:
• This PR requires changes to matic-cli
  • In case link the PR here:

Testing

• I have added unit tests
• I have added tests to CI
• I have tested this code manually on local environment
• I have tested this code manually on remote devnet using express-cli
• I have tested this code manually on mumbai
• I have created new e2e tests into express-cli

Manual tests

Please complete this section with the steps you performed if you ran manual tests for this functionality, otherwise delete it

Additional comments

Please post additional comments in this section if you have them, otherwise delete it

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (c7ec9d5) 75.40% compared to head (320ad3b) 75.40%.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1037   +/-   ##
========================================
  Coverage    75.40%   75.40%           
========================================
  Files           49       49           
  Lines         5309     5309           
========================================
  Hits          4003     4003           
  Misses        1071     1071           
  Partials       235      235           

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