FEAT: add new script createSymlink

FEAT: add new file tools/create-symlink.mjs
FEAT: add d.ts files
FIX: add new foundry symlink to .gitignore

daggerheart.d.ts

@@ -0,0 +1,21 @@
+import './module/_types';
+import '@client/global.mjs';
+import Canvas from '@client/canvas/board.mjs';
+
+// Foundry's use of `Object.assign(globalThis) means many globally available objects are not read as such
+// This declare global hopefully fixes that
+declare global {
+    /**
+     * A simple event framework used throughout Foundry Virtual Tabletop.
+     * When key actions or events occur, a "hook" is defined where user-defined callback functions can execute.
+     * This class manages the registration and execution of hooked callback functions.
+     */
+    class Hooks extends foundry.helpers.Hooks {}
+    const fromUuid = foundry.utils.fromUuid;
+    const fromUuidSync = foundry.utils.fromUuidSync;
+
+    /**
+     * The singleton game canvas
+     */
+    const canvas: Canvas;
+}