[enriched/phabricator] Fix the field `time_to_close_days`

[zhquan]

Fixed:

• time_to_close_days: time from ticket creation to ticket close (resolved, wontfix, invalid, spite, duplicate)

Added:

• closed_at: date the ticket was closed

Removed:

• time_open_days_enrich
• timeopen_days

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

[coveralls]

Pull Request Test Coverage Report for Build 2341

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 27 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.02%) to 82.126%

---

Files with Coverage Reduction	New Missed Lines	%
/home/travis/build/chaoss/grimoirelab-elk/grimoire_elk/utils.py	1	65.78%
/home/travis/build/chaoss/grimoirelab-elk/grimoire_elk/enriched/phabricator.py	26	67.42%
<!--	Total:	27		-->

Totals
Change from base Build 2328:	-0.02%
Covered Lines:	8321
Relevant Lines:	10132

---

💛 - Coveralls