Added loaders module

src/loaders/index.ts

@@ -0,0 +1,15 @@
+export {
+    LoaderMetadata,
+} from "./loader-metadata";
+
+export {
+    LoaderMetadataReader,
+
+    createLoaderMetadataReader,
+    combineLoaderMetadataReaders,
+    createDefaultLoaderMetadataReader,
+} from "./loader-metadata-reader";
+
+export {
+    LoaderType,
+} from "./loader-type";