Added license and readme

Author: TheCherno

LICENSE.txt

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+MIT License
+
+Copyright (c) 2023 Studio Cherno
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Walnut-Networking
+
+Walnut-Networking an optional module for [Walnut](https://github.com/StudioCherno/Walnut) which provides networking capabilities.
+
+## Getting Started
+Add this is a submodule to your [Walnut](https://github.com/StudioCherno/Walnut) application. If you need to make a new Walnut app, check out [WalnutAppTemplate](https://github.com/StudioCherno/WalnutAppTemplate).
+
+If cloned into `Walnut/` directory, Walnut's build scripts should automatically pick this up and include it into your project if present. Otherwise, if doing this manually, include the `Build-Walnut-Networking.lua` file into your build scripts somewhere, eg:
+
+``` lua
+include "Walnut/Walnut-Networking/Build-Walnut-Networking.lua"
+```
+
+[Walnut Chat](https://github.com/TheCherno/Walnut-Chat) is an example app made using Walnut and this Walnut-Networking module, so check that out for a further example of how to get started. The server component of this project runs on a Linux server (headless) which is also a useful example.
+
+## Features
+- Supports Windows and Linux (mostly)
+- Client/Server API for both reliable and unreliable data transmission, using Valve's [GameNetworkingSockets](https://github.com/ValveSoftware/GameNetworkingSockets) library
+- Easy and clean network event callbacks and connection management
+- DNS lookup utility function for translating domain names to IP addresses (`Walnut::Utils::ResolveDomainName`)
+- _[Planned]_ HTTP API for GET/POST requests 
+
+### 3rd Party Libraries
+- [GameNetworkingSockets](https://github.com/ValveSoftware/GameNetworkingSockets)