Set custom path for output

[SergeyPirogov]

Now the path to .nyc_output is not configurable. Is it possible to add support for this? For example if I need to generate raw data to the different path. Example /user/home/project/folder/.nyc_output

[bcoe]

@SergeyPirogov would happily take a patch for this 👍

[munrocket]

Also we need to customize path in report, because coverage simply not working with wrong paths.
For example I need to replace .nyc_output/js -> dist in my report with this dirty hack:

sed -i 's/.nyc_output\\/js/dist/g' .nyc_output/out.json && nyc report --reporter=lcov