Refactor config

[Lee-W]

(Thanks for sending a pull request! Please fill in the following content to let us know better about this change.)

Types of changes

Please put an x in the box that applies

• Bugfix
• New feature
• Refactoring
• Breaking change (any change that would cause existing functionality to not work as expected)
• Documentation Update
• Other (please describe)

Description

• move bump_map, bump_pattern, commit_parser from defaults to ConventionalCommitsCz

Checklist:

• Add test cases to all the changes you introduce
• Run ./script/lint and ./script/test locally to ensure this change passes linter check and test
• Test the changes on the local machine manually
• Update the documentation for the changes

Steps to Test This Pull Request

Expected behavior

No behavior should be changed.

Related Issue

#199 (comment)

Additional context

Add any other context or screenshots about the pull request here.

[codecov]

Codecov Report

Merging #203 into master will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #203      +/-   ##
==========================================
- Coverage   96.58%   96.57%   -0.02%     
==========================================
  Files          33       33              
  Lines         908      904       -4     
==========================================
- Hits          877      873       -4     
  Misses         31       31              

Flag	Coverage Δ
#unittests	96.57% <100.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
commitizen/cz/customize/customize.py	92.85% <ø> (-0.48%)	⬇️
commitizen/__version__.py	100.00% <100.00%> (ø)
...en/cz/conventional_commits/conventional_commits.py	98.43% <100.00%> (+0.02%)	⬆️
commitizen/defaults.py	100.00% <100.00%> (ø)
commitizen/cz/base.py	100.00% <0.00%> (ø)
commitizen/git.py	95.55% <0.00%> (+0.04%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e24530e...c0b743f. Read the comment docs.

[Lee-W]

I think this one is stale. I'll create another one to do this refactor once I have time