[schema] Add description, aggregatable and remove useless fields for each data schema

[jsmanrique]

Data schema CSV files are very useful to understand which data is GrimoireLab producing.

Wouldn't it be nice to have a short description for each field to make easier to understand what it represents?

A possible way to to do that would be to add a new column with just that description in the .csv file

This task will include information about the 'aggregatable column' and the removal of useless fields.

data source	Description column	Aggregatable column	Removal useless fields
askbot
apache
bugzilla
confluence
crates	DONE	DONE	DONE
discourse
dockerhub
functest
gerrit	DONE	DONE	DONE
git	DONE	DONE	DONE
git areas of code	DONE	DONE	DONE
github_issues
google-hits
irc
jenkins
jira
maniphest
meetup		DONE
mbox
mediawiki
mozillaclub
onion	DONE	DONE	DONE
redmine
remo-activities
remo-events
rss
slack
stackoverflow
telegram
twitter

Related tasks:

• 166

Duplicated tasks:

• 284

• 252

[dicortazar]

Hi, @alpgarcia , @valeriocos and me will work on the description, testing and other related tasks here.

This will include actions coming from other tickets such as #284 and #252 . I'll close those two tickets and add here in the description a table that we'll be updating for each of the data sources.

[dicortazar]

Gerrit, Git and AOC ready to go.

[dicortazar]

Crates and onion ready to go.

[valeriocos]

Is there any advancement on this issue @dicortazar @alpgarcia ? If this isn't the case, we may want to close this ticket and re-think how to push the schema doc forward. Thanks