[enriched/git] Add more git commit meta fields

[zhquan]

This code extracts more authors meta info:

• Approved-by
• Co-authored-by
• Merged-by

For each one it will creates 10 new fields.

• suffixes: _bots, _domains, _names, _org_names, _uuids
• prefix: non_authored_

Example of Merged-by:

• merged_by_multi_bots
• merged_by_multi_domains
• merged_by_multi_names
• merged_by_multi_org_names
• merged_by_multi_uuids
• non_authored_merged_by_multi_bots
• non_authored_merged_by_multi_domains
• non_authored_merged_by_multi_names
• non_authored_merged_by_multi_org_names
• non_authored_merged_by_multi_uuids

Signed-off-by: Quan Zhou quan@bitergia.com

[coveralls]

Pull Request Test Coverage Report for Build 3337812346

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 75 unchanged lines in 1 file lost coverage.
• Overall coverage remained the same at 82.633%

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Files with Coverage Reduction	New Missed Lines	%
/home/runner/work/grimoirelab-elk/grimoirelab-elk/grimoire_elk/enriched/git.py	75	72.52%
<!--	Total:	75		-->

Totals
Change from base Build 3328664871:	0.0%
Covered Lines:	9026
Relevant Lines:	10923

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💛 - Coveralls

[jjmerchante]

LGTM