Added Elixir Egg (#2450)

Add: elixir

generic/elixir/README.md

@@ -0,0 +1,22 @@
+# Elixir Language Generic
+
+This egg is designed to run any generic Elixir application, allowing users to pull their own Elixir source code from a Git repository.
+
+There is an option to allow a user to upload their own files to run a server.
+
+The startup configs and commands may need changing to actually function properly.
+
+## Configuration
+
+The server will be stuck as `starting` until the egg Start Configuration is modified. You have to edit the text to match something your bot will print for Pterodactyl panel to detect it as running.
+![image](https://user-images.githubusercontent.com/10975908/126516861-c5cb4630-9f25-405c-8199-97bf5ec15a7f.png)
+
+You can use arrays to have multiple different values when different bots are being used
+
+```json
+{
+  "done":[
+    "change this text 1",
+    "change this text 2"
+  ]
+}