Standardize issue labels across repositories

[alexander-yevsyukov]

... names and colors.

Here are GitHub issues and docs to help us:

• https://github.blog/changelog/2019-10-17-create-default-labels-at-the-organization-level/
• Ability to set default issue labels per organization (colors and names) isaacs/github#371
• Allow me to create a default set of labels for my repos isaacs/github#281

Some of the tools mentioned in the discussions:

• https://github.com/displague/github-labeller
• https://github.com/iamerikjolson/GitHub-Issues-Process/blob/master/set-github-labels.sh

[alexander-yevsyukov]

@armiol, here's the issue on labels with some community knowledge and tools already accumulated. Just FYI.