Implement PIP-12, Time Based StateSync Confirmations Delay

[pratikspatil024]

Description

This PR implements PIP-12 Time Based StateSync Confirmations Delay

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

[codecov]

Codecov Report

Patch coverage: 2.70% and project coverage change: -0.05 ⚠️

Comparison is base (f1c8226) 56.88% compared to head (c04dd94) 56.83%.

❗ Current head c04dd94 differs from pull request most recent head c36d0ba. Consider uploading reports for the commit c36d0ba to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #864      +/-   ##
===========================================
- Coverage    56.88%   56.83%   -0.05%     
===========================================
  Files          617      617              
  Lines        73602    73618      +16     
===========================================
- Hits         41871    41844      -27     
- Misses       28196    28239      +43     
  Partials      3535     3535              

Impacted Files	Coverage Δ
consensus/bor/bor.go	7.16% <0.00%> (-0.18%)	⬇️
consensus/bor/genesis_contract_mock.go	0.00% <0.00%> (ø)
consensus/bor/span_mock.go	0.00% <0.00%> (ø)
params/config.go	29.52% <0.00%> (-0.29%)	⬇️
graphql/graphql.go	15.52% <50.00%> (ø)

... and 21 files with indirect coverage changes

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