[FEATURE REQUEST] TAP-compliant output

[bryanburke]

Is your feature request related to a problem? Please describe.
No.

Describe the solution you'd like
Test Anything Protocol, TAP for short, is a simple plain text protocol for communication of test results between tools in a language-agnostic way. TAP-formatted results are parseable by a variety of libraries and tools, and several tools exist to convert between TAP and other common formats such as JUnit XML. Support for TAP-compliant output would be useful in automated CI workflows, where a variety of testing and static analysis tools often come together to produce a more complete picture of code quality.