introduce `markiscodecoverage.exclude` to exclude lower piority files from `Show Code Coverage`

[loynoir]

title

introduce markiscodecoverage.exclude to exclude lower piority files from Show Code Coverage

background

For example, source code contains

• stable source code

• and unstable source code

When testing, lcov.info contains coverage data for both stable and unstable source code.

problem

When in editor, many unstable source code leads to distraction.

feat

Would be nice to exclude files from Show Code Coverage, so user can concentrate on improving higher piority code.

naming

vscode settings have

• files.excludes

• search.exclude

So I suggest

• markiscodecoverage.exclude

instead of

• markiscodecoverage.ignore