Merge branch '35VLG84/wip/scala-2.13'

Initial Scala 2.13 support

See merge request: !14

Signed-off-by: 35V LG84 <35vlg84-x4e6b92@e257.fi>
3 jobs for master in 16 minutes and 34 seconds
Status Job ID Name Coverage
  Test
passed #268945306
codecov

00:10:57

99.8%
passed #268945304
test·jdk11

00:16:33

passed #268945305
test·jdk8

00:15:13