Add simple BuildConfig object with GradlePluginArtifacts

Author: HLGreer

Diff for: wire-binary-compatibility-gradle-plugin/src/main/kotlin/com/squareup/wire/binarycompatibility/gradle/BuildConfig.kt

@@ -0,0 +1,9 @@
+package com.squareup.wire.binarycompatibility.gradle
+
+object BuildConfig {
+  const val KOTLIN_PLUGIN_GROUP: String = "com.squareup.wire.binarycompatibility";
+
+  const val KOTLIN_PLUGIN_NAME: String = "wire-binary-compatibility-kotlin-plugin";
+
+  const val KOTLIN_PLUGIN_VERSION: String = "1.0.0-SNAPSHOT";
+}

Diff for: wire-binary-compatibility-gradle-plugin/src/main/kotlin/com/squareup/wire/binarycompatibility/gradle/WireBinaryCompatibilityPlugin.kt

@@ -28,9 +28,9 @@ class WireBinaryCompatibilityPlugin : KotlinCompilerPluginSupportPlugin {
   override fun getCompilerPluginId(): String = "com.squareup.wire.binarycompatibility.kotlin"
 
   override fun getPluginArtifact(): SubpluginArtifact = SubpluginArtifact(
-    groupId = "com.squareup.wire.binarycompatibility",
-    artifactId = "wire-binary-compatibility-kotlin-plugin",
-    version = "2.6.0-SNAPSHOT",
+    groupId = BuildConfig.KOTLIN_PLUGIN_GROUP,
+    artifactId = BuildConfig.KOTLIN_PLUGIN_NAME,
+    version = BuildConfig.KOTLIN_PLUGIN_VERSION,
   )
 
   override fun applyToCompilation(