6.0.0

• Required Gradle 6.0+
• NEW: Support for Gradle Metadata publication via the shadowRuntimeElements configuration. This is a beta feature
  the hasn't been tested extensively. Feedback is appreciated.
• Fix Gradle 7 deprecation warnings #530
• Fix to generated start script to correctly use optsEnvironmentVar#518
• Yahor Berdnikau - Fix issues with Gradle API being embedded into published JAR #527
• Dmitry Vyazelenko - ASM updates to support latest Java versions #549
• ejjcase - Support exposing shadowed project dependencies via POM #543
• Artem Chubaryan - Performance optimizations #535
• Trask Stalnaker - Fix exclude patterns on Windows #539