Move TelemetryClient implementation into submodule

This is required because Unity Package Manager expects the package.json to be at the root of the Package repository.
See https://docs.unity3d.com/Manual/cus-layout.html

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "TelemetryClient/Assets/TelemetryClient"]
+	path = TelemetryClient/Assets/TelemetryClient
+	url = https://github.com/conath/TelemetryClient-for-UnityCSharp.git

README.md

@@ -1,81 +1,28 @@
-# TelemetryClient for Unity
+# TelemetryClient for Unity (Development project)
 
 ## Lightweight Analytics That's Not Evil
 
 Please visit [TelemetryDeck.com](https://telemetrydeck.com/) to learn more.
 
 ## About this repository
 
-This repository contains the TelemetryDeck Unity C# Client, as well as an example usage of the API (see [TestApp](/TelemetryClient/Assets/TestApp/) folder).
+This repository contains the development project for the TelemetryDeck Unity C# Client, as well as an example usage of the API (see [TestApp](/TelemetryClient/Assets/TestApp/) folder).
 
-## Dependenies
+To add the Unity C# TelemetryClient to your project, please visit the [TelemetryClient for Unity C#](https://github.com/conath/TelemetryClient-for-UnityCSharp/) repository.
 
-As TelemetryClient relies on JSON Serialization of Dictionaries, the JsonUtility built into Unity is not sufficient.
+## Dependencies
 
-Please add either [Json.NET for Unity](https://github.com/jilleJr/Newtonsoft.Json-for-Unity) (preferred) or [Newtonsoft.JSON](https://github.com/JamesNK/Newtonsoft.Json) to your project. We recommend you install Json.NET for Unity via Unity Package Manager. 
+Please see the [TelemetryClient README](https://github.com/conath/TelemetryClient-for-UnityCSharp).
 
-<details>
-  <summary>How to add Json.Net for Unity via Unity Package Manager</summary> 
+## Cloning
 
-  First add the jilleJr Scoped Registry to your Unity Project settings:
+You must clone with submodules to receive a working Unity Project:
 
-  ![Click on Window, Package Manager. Click the Gear icon, then Advanced Project Settings. In the Project Settings window that opens, fill in the details for the jilleJr scoped registry (follows below). Click Save.](https://github.com/conath/TelemetryDeck-Unity/raw/test-upm/HowToAddJilleJRScopedRegistry.jpg)
+`git clone https://github.com/conath/TelemetryDeck-Unity.git --recurse-submodules`
 
-  The jilleJr Scoped Registry: Name "Packages from jillejr", URL "https://npm.cloudsmith.io/jillejr/newtonsoft-json-for-unity/" and Scopes "jillejr".
+or, with SSH:
 
-  After you've added the registry, you can proceed with the next section, [Installing with Unity Package Manager](#installing-with-unity-package-manager) (Json.NET will automatically be installed).
-
-</details>
-
-You can alternatively edit your Project's `Packages/manifest.json` file directly.
-
-<details>
-  <summary>How to add Json.Net for Unity by editing manifest.json</summary> 
-  Add the following to the end of the dependencies array:
-
-  ```json
-    "jillejr.newtonsoft.json-for-unity": "13.0.102"
-  ```
-
-  If your manifest doesn't already include a `scopedRegistries` key, add this before the last `}` in the file:
-
-  ```json
-  "scopedRegistries": [
-    {
-      "name": "Packages from jillejr",
-      "url": "https://npm.cloudsmith.io/jillejr/newtonsoft-json-for-unity/",
-      "scopes": [
-        "jillejr"
-      ]
-    }
-  ]
-  ```
-
-  Otherwise, add this into the `scopedRegistries` array:
-
-  ```json
-    ,
-    {
-      "name": "Packages from jillejr",
-      "url": "https://npm.cloudsmith.io/jillejr/newtonsoft-json-for-unity/",
-      "scopes": [
-        "jillejr"
-      ]
-    }
-  ```
-
-  The Json.NET for Unity Wiki provides [further instructions on installing their package via UPM](https://github.com/jilleJr/Newtonsoft.Json-for-Unity/wiki/Installation-via-UPM).
-
-</details>
-
-## Installing with Unity Package Manager
-
-TelemetryClient is available with Unity Package Manager. Simply install the [dependencies](#dependencies), then add [this URL](/TelemetryClient/Assets/TelemetryClient/) to Unity. (TODO is this how it works?)
-
-## Installing (alternative Unity Package)
-
-You may alternatively download the latest [Unity Package release](/releases) and import it into your project.
-Note that you also need to add the Json.NET for Unity or Newtonsoft.JSON dependency to your project - see previous section.
+`git clone git@github.com:conath/TelemetryDeck-Unity.git --recurse-submodules`
 
 ## License