Update net.wooga.plugins to version 3.x (#151)

Description
===========

This update will bring the plugin `net.wooga.plugins` to
version `3.x`. With this change the groupname of the gradle
plugin will change during publish so I thought it might be
a good idea to change the project name as well so the groupname
won't include the `atlas` name.

The old groupname `gradle.plugin.net.wooga.gradle:atlas-unity`
would become `net.wooga.gradle:unity`.

This patch also includes all changes needed for the new
plugin metadata description.

Changes
=======

* ![UPDATE] `net.wooga.plugins` to version `3.x` range
* ![CHANGE] project name and remove `atlas` term
* ![IMPROVE] plugin publish metadata

build.gradle

@@ -16,7 +16,7 @@
  */
 
 plugins {
-    id 'net.wooga.plugins' version '2.3.0'
+    id 'net.wooga.plugins' version '3.2.0'
     id 'net.wooga.snyk' version '0.10.0'
     id "net.wooga.snyk-gradle-plugin" version "0.2.0"
     id "net.wooga.cve-dependency-resolution" version "0.4.0"
@@ -29,12 +29,15 @@ pluginBundle {
     website = 'https://wooga.github.io/atlas-unity/'
     vcsUrl = 'https://github.com/wooga/atlas-unity'
     tags = ['Unity3D']
+}
 
+gradlePlugin {
     plugins {
         unity {
             id = 'net.wooga.unity'
             displayName = 'Gradle Unity plugin'
             description = 'This plugin provides tasks for working with Unity3D projects'
+            implementationClass = 'wooga.gradle.unity.UnityPlugin'
         }
     }
 }
@@ -48,7 +51,6 @@ github {
 }
 
 dependencies {
-
     implementation 'com.wooga.gradle:gradle-commons:[1,2['
     implementation 'org.apache.maven:maven-artifact:3.8.5'
     implementation "org.yaml:snakeyaml:1.30"
@@ -59,7 +61,4 @@ dependencies {
     }
 
     testImplementation("com.wooga.spock.extensions:spock-unity-version-manager-extension:0.3.0")
-
-    testImplementation 'com.github.stefanbirkner:system-rules:[1.18['
-
 }

settings.gradle

@@ -28,4 +28,4 @@ pluginManagement {
   }
 }
 
-rootProject.name = 'atlas-unity'
+rootProject.name = 'unity'

src/main/groovy/wooga/gradle/unity/tasks/SetAPICompatibilityLevel.groovy

@@ -19,6 +19,7 @@ package wooga.gradle.unity.tasks
 import org.gradle.api.DefaultTask
 import org.gradle.api.provider.MapProperty
 import org.gradle.api.specs.Spec
+import org.gradle.api.tasks.Internal
 import org.gradle.api.tasks.TaskAction
 import wooga.gradle.unity.models.APICompatibilityLevel
 import wooga.gradle.unity.traits.APICompatibilityLevelSpec
@@ -30,6 +31,7 @@ class SetAPICompatibilityLevel extends DefaultTask implements APICompatibilityLe
 
     private MapProperty<String, APICompatibilityLevel> previousAPICompatibilityLevel
 
+    @Internal
     MapProperty<String, APICompatibilityLevel> getPreviousAPICompatibilityLevel(){
         previousAPICompatibilityLevel
     }

src/main/groovy/wooga/gradle/unity/utils/UnityTestTaskReport.groovy

@@ -20,6 +20,8 @@ package wooga.gradle.unity.utils
 import org.gradle.api.reporting.Report
 import org.gradle.api.reporting.ReportContainer
 import org.gradle.api.reporting.SingleFileReport
+import org.gradle.api.tasks.Internal
+import org.gradle.api.tasks.OutputFile
 
 /**
  * Container type for Unity test task result reports.
@@ -30,5 +32,6 @@ interface UnityTestTaskReport extends ReportContainer<Report>{
      * Returns a {@link org.gradle.api.reporting.SingleFileReport} object.
      * @return the xml report object.
      */
+    @Internal
     SingleFileReport getXml()
 }