🧑‍💻 Add simple filesystem file provider

- Allows parsing files from a local folder

server/parser/filesystem.js

@@ -0,0 +1,24 @@
+import fs from "fs";
+
+/* 
+This file provider allows the application to use a local folder containing
+parsable (.html) files, instead of downloading them from the internet.
+
+This can be especially useful for development.
+*/
+
+export class FileSystemClient {
+  constructor(path) {
+    this.path = path;
+  }
+
+  getFiles() {
+    const contents = [];
+    const files = fs.readdirSync(this.path);
+    for (const file of files) {
+      const data = fs.readFileSync(this.path + "/" + file).toString();
+      contents.push(data);
+    }
+    return contents;
+  }
+}