[1.0.0] Refactor plugin to use modern Gradle

This was largely a rewrite to use modern Gradle practices, and simplify the code base.

Gradle Plugin Portal - v1.0.0

What's Changed

• Support newer Gradle versions by @jamietanna in #18
• Official Gradle Wrapper Validation Action by @scordio in #20
• [Chore] Update dependencies to use modern packages by @Nava2 in #19
• Bump junit:junit from 4.12 to 4.13.2 by @dependabot in #24
• Bump org.assertj:assertj-assertions-generator from 2.0.0 to 2.2.1 by @dependabot in #26
• Bump com.google.guava:guava from 28.1-jre to 31.1-jre by @dependabot in #27
• Bump com.gradle.plugin-publish from 1.1.0 to 1.2.0 by @dependabot in #28
• [Simplification] Remove global options in plugin in favour of source-… by @Nava2 in #30
• [Simplify] Remove auto-application of java plugin by @Nava2 in #34
• [Simplify] Remove unused methods, add ListProperty<> values for `Te… by @Nava2 in #32
• [Simplify] Remove custom source set implementation in favour of using… by @Nava2 in #33
• [Simplify] Flatten DefaultAssertJGeneratorOptions into single class by @Nava2 in #31
• [Kotlin] Add Kotlin source support to build chain by @Nava2 in #37
• [Simplify] Clean-up report builder to make it easier to read and prep… by @Nava2 in #35
• [Simplify] Remove Either custom type in Templates infavour of simpler type by @Nava2 in #38
• [Konvert] Konvert Report from groovy to Kotlin by @Nava2 in #36
• [Simplify] Clean-up and add missing entry point values by @Nava2 in #39
• [Konvert] Convert Templates class to Kotlin by @Nava2 in #41
• [Konvert] Convert EntryPointOptions to Kotlin by @Nava2 in #40
• [Konvert] Convert AssertJGeneratorExtension class to Kotlin by @Nava2 in #42
• [Clean-up] Clean-up some groovy code for the AssertJ task, add caching by @Nava2 in #44
• [Konvert] Convert AssertJGenerationTask to Kotlin by @Nava2 in #43
• [Konvert] Convert AssertJGeneratorGradlePlugin to Kotlin by @Nava2 in #45
• [Chore] Clean-up and remove unnecessary Configuration for plugin by @Nava2 in #46
• [Modernize] Use *.class files as sources instead of *.java by @Nava2 in #47
• [CI] Add Github publishing by @Nava2 in #49
• [CI] Fix-up local tasks broken by CI checks by @Nava2 in #50
• [Filtering] Add support for filtering packages like Maven plugin by @Nava2 in #53
• [Filtering] Add support for filtering classes like Maven plugin by @Nava2 in #54

New Contributors

• @jamietanna made their first contribution in #18
• @scordio made their first contribution in #20
• @dependabot made their first contribution in #24

Full Changelog: v0.0.6...v1.0.0