Support for Kover

[egor-n]

Kover is getting traction as the replacement for JaCoCo in the Kotlin world. Please consider supporting their format or lending a hand in Kotlin/kotlinx-kover#16

[drazisil-codecov]

Hi @egor-n ,

Based on https://medium.com/@callmeryan/code-coverage-kover-bitrise-and-codecov-52a6715914a8, it looks like we already do. What issues are you seeing?