Revert "Move frameworks/base/tools/ to frameworks/tools/"

This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.
diff --git a/tools/layoutlib/create/manifest.txt b/tools/layoutlib/create/manifest.txt
new file mode 100644
index 0000000..238e7f9
--- /dev/null
+++ b/tools/layoutlib/create/manifest.txt
@@ -0,0 +1 @@
+Main-Class: com.android.tools.layoutlib.create.Main