feat: Implement LiteHashDRBG and RNG utilities

- Added BytesLike type for handling various byte representations.
- Implemented LiteHashDRBG class for SHA-512 based deterministic random bit generator.
- Created RNG interface defining methods for random number generation.
- Developed RandUtil class providing utility functions for RNG operations.
- Added conversion functions for BytesLike to ArrayBuffer and Uint8Array.
- Implemented comprehensive tests for RNG functionality and expected behaviors.
- Configured Vitest for testing environment setup.

packages/logic/vitest.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+    test: {
+        environment: 'node',
+        globals: true,
+        include: ['test/**/*.test.ts']
+    }
+});