Added WIP updater Files. (Script doesn't work atm.)

Doc/updater.md

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+# Updater WIP DOC!
+
+The Updater is a self writen Script that updates the Game modifications to the latest build.
+
+In the future there will also be a in-game part that will show you when you need a update.
+
+# 1. Script explained
+
+## 1.1 Script Part X
+
+
+# 2. Endpoints
+
+These Endpoints are used by the updater to download its files, check for newer versions,...
+
+ROOT: /updater/
+
+## 2.1 /updater/version/*
+Type: GET
+
+Response Type: JSON
+
+Example: {"version": 1}
+
+Description: Used to check for newer Versions.
+
+### 2.1.1 Sub-Endpoints
+/script
+
+/pak
+
+/sig
+
+## 2.2 /updater/files/*
+Type: GET
+
+Response: FILE
+
+Description: Used for downloading Files.
+
+### 2.2.1 Sub-Endpoints
+/script
+
+/pak
+
+/sig
+
+# 3. In-Game Part
+
+What it does
+
+How its done