Add initial implementation for AscAssetManager module

This commit introduces the following key features:

- **New `.gitignore`**:
  - Ignores `.vscode`, `.eslintrc.js`, and `dist/module.zip`.

- **Core functionality**:
  - Created `src/main.js` to implement the `AscAssetManager` class with methods to manage file uploads, categories, tags, and settings registration.
  - Introduced hooks for rendering and managing custom upload dialogs and forms.

- **Configuration and settings**:
  - Added `src/settings.js` to register settings for features like enabling/disabling, root directory configuration, and theme selection.

- **Templates**:
  - Added `upload-choose.hbs` for the file selection dialog.
  - Added `upload-form.hbs` for the file metadata customization dialog.

- **Utilities**:
  - Added `src/utils.js` with helper functions for file parsing, metadata handling, and filename creation.

- **Styling**:
  - Added `style.css` for styling upload areas.

- **Module metadata**:
  - Added `module.json` with module details, compatibility, and dependencies.

This commit establishes the foundational structure and functionality for the AscAssetManager module.

src/settings.js

@@ -0,0 +1,48 @@
+export function registerSettings(ID) {
+  console.log("Registering settings for My Module...");
+
+  // Register the "enableFeature" setting
+  game.settings.register(ID, "enableFeature", {
+    name: "Enable Feature",
+    hint: "Enable or disable the special feature of this module.",
+    scope: "world",
+    config: true,
+    type: Boolean,
+    default: true,
+    onChange: value => {
+      console.log(`Enable Feature setting changed to: ${value}`);
+    }
+  });
+
+  // Register the "customMessage" setting
+  game.settings.register(ID, "rootDirectory", {
+    name: "Root Directory",
+    hint: "Root Directory to save files",
+    scope: "client",
+    config: true,
+    type: String,
+    default: `worlds/${game.data.world.id}/`,
+    filePicker: "folder",
+    onChange: value => {
+      console.log(`Custom Message changed to: ${value}`);
+    }
+  });
+
+  // Register a dropdown setting
+  game.settings.register(ID, "theme", {
+    name: "Select Theme",
+    hint: "Choose a theme for the module.",
+    scope: "world",
+    config: true,
+    type: String,
+    choices: {
+      light: "Light Theme",
+      dark: "Dark Theme",
+      system: "Use System Default"
+    },
+    default: "system",
+    onChange: value => {
+      console.log(`Theme changed to: ${value}`);
+    }
+  });
+}