Add buffer packer

src/export/packer/buffer.ts

@@ -0,0 +1,19 @@
+import { File } from "../../file";
+import { BufferStream } from "./buffer-stream";
+import { Compiler } from "./compiler";
+
+export class BufferPacker {
+    private readonly packer: Compiler;
+
+    constructor(file: File) {
+        this.packer = new Compiler(file);
+    }
+
+    public async pack(): Promise<Buffer> {
+        const stream = new BufferStream();
+
+        await this.packer.compile(stream);
+
+        return stream.Buffer;
+    }
+}