add initial marp implementation with sample content and build configuration

node_modules/basic-ftp/dist/StringWriter.d.ts

@@ -0,0 +1,9 @@
+/// <reference types="node" />
+/// <reference types="node" />
+import { Writable } from "stream";
+import { StringEncoding } from "./StringEncoding";
+export declare class StringWriter extends Writable {
+    protected buf: Buffer;
+    _write(chunk: Buffer | string | any, _: string, callback: (error: Error | null) => void): void;
+    getText(encoding: StringEncoding): string;
+}