Tweak test report

[fornellas]

Tweak the test execution report to:

• Show successful, failed, skipped and not executed tests even when it is 0.
  • It is printed in dim white in this case.
  • When there's 1+ examples, it is printed with the same usual color code (green, red, yellow, cyan).
• Improve the message for slow imports, making it more visible and hinting what to do next.
• Add link to documentation: despite being comprehensive, few people refer to it, let's make this better.
• Add nice colored ASCII colored logo, because why not help branding ¯_(ツ)_/¯

[fornellas]

@deathowl do you know about these 2 build errors?

[deathowl]

@deathowl do you know about these 2 build errors?

i think rebase should resolve them

[fornellas]

I'll move this logo to the right in the next week or so, so it is not annoying to users.

[fornellas]

Moved logo to the right of the screen so it does not annoy:

• If stdout is a terminal:
  • if columns > 80 then it caps the logo to the 80th column (so it does not goes all the way to the right on big terminals).
  • else
    • if it can fit the logo then print it
    • else does not print it
• else
  • print the logo as if the terminal had 80 columns.