[build] Move shared and gradle-plugin into separate gradle builds

Platform libs build will be changed by a separate commit

settings.gradle

@@ -26,6 +26,16 @@ include ':runtime'
 include ':common'
 include ':backend.native:tests'
 include ':backend.native:debugger-tests'
-include ':shared'
-include ':tools:kotlin-native-gradle-plugin'
+// TODO: remove
+// TODO: Use 'shared' build in buildSrc and all build scripts as a dependency (of a build script too)
+//include ':shared'
+//include ':tools:kotlin-native-gradle-plugin'
 include ':utilities'
+include ':performance'
+
+includeBuild 'tools/kotlin-native-gradle-plugin'
+includeBuild('shared') {
+    dependencySubstitution {
+        substitute module('org.jetbrains.kotlin:kotlin-native-shared') with project(':')
+    }
+}