Update to Dokka 1.6.0-dev-128

Update to Kotlin 1.6.0 is required

Fixes: 192366979
Fixes: 204301077

Introduces issue with type name of nested other package classes  https://github.com/Kotlin/dokka/issues/2245

Tests: ./gradlew test
Change-Id: Id69ffc26f0f4e9446d80e69aca249f568685f5ae
82 files changed