Kapt: Add runtime library, move all modules inside the 'kapt3' directory

plugins/kapt3/kapt3-compiler/testData/converter/abstractMethods.txt

@@ -0,0 +1,34 @@
+@kotlin.Metadata()
+public abstract class Base {
+
+    protected abstract void doJob(@org.jetbrains.annotations.NotNull()
+    java.lang.String job, int delay);
+
+    protected abstract <T extends java.lang.CharSequence>void doJobGeneric(@org.jetbrains.annotations.NotNull()
+    T job, int delay);
+
+    public Base() {
+        super();
+    }
+}
+
+////////////////////
+
+
+@kotlin.Metadata()
+public final class Impl extends Base {
+
+    @java.lang.Override()
+    protected void doJob(@org.jetbrains.annotations.NotNull()
+    java.lang.String job, int delay) {
+    }
+
+    @java.lang.Override()
+    protected <T extends java.lang.CharSequence>void doJobGeneric(@org.jetbrains.annotations.NotNull()
+    T job, int delay) {
+    }
+
+    public Impl() {
+        super();
+    }
+}