[AlgoCollector] Testing mode

[ledongthuc]

Source code: https://github.com/ruby-vietnam/hardcore-rule/tree/master/algorithms/collector

Background

• When starting the algorithm collector, it merges pull requests and add a comment to the weekly report page
  

Problems

• Sometimes, we need to test or verify features that we only want to check pull request scores and review final comments without merging or add any real comments.

Proposal

• Add a variable environment to declare testing mode, suggestion: DEBUG_MODE
• When DEBUG_MODE=true, the algorithm collector won't merge and delete any pull requests and add comments to the weekly report page
  
• Other functions to calculate scores, printing debug console work normally.