Added & integrated manual round handler

[iulianpascalau]

Reasoning behind the pull request

• added & integrated manual round handler

Proposed changes

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?

[codecov]

Codecov Report

Attention: 76 lines in your changes are missing coverage. Please review.

Comparison is base (a0dd10a) 79.26% compared to head (1588b6b) 79.19%.
Report is 1 commits behind head on feat/test-only-processor-node.

❗ Current head 1588b6b differs from pull request most recent head b308a29. Consider uploading reports for the commit b308a29 to get more accurate results

Additional details and impacted files

@@                        Coverage Diff                        @@
##           feat/test-only-processor-node    #5684      +/-   ##
=================================================================
- Coverage                          79.26%   79.19%   -0.08%     
=================================================================
  Files                                724      725       +1     
  Lines                              95210    95231      +21     
=================================================================
- Hits                               75471    75420      -51     
- Misses                             14385    14456      +71     
- Partials                            5354     5355       +1     

Files	Coverage Δ
node/chainSimulator/components/coreComponents.go	0.00% <0.00%> (ø)
node/chainSimulator/chainSimulator.go	79.41% <76.92%> (+4.41%)	⬆️
...hainSimulator/components/testOnlyProcessingNode.go	0.00% <0.00%> (-6.85%)	⬇️
...de/chainSimulator/components/manualRoundHandler.go	0.00% <0.00%> (ø)
node/chainSimulator/configs/configs.go	0.00% <0.00%> (ø)

... and 6 files with indirect coverage changes

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