Added ClearScript for upcoming clientside

Example code for "test.js": ```script.SendMessage('test message');```

Client/CoopClient.csproj

@@ -13,6 +13,8 @@
     <FileAlignment>512</FileAlignment>
     <Deterministic>true</Deterministic>
     <TargetFrameworkProfile />
+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -39,6 +41,14 @@
     <DocumentationFile>bin\Release\CoopClient.xml</DocumentationFile>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="ClearScript.Core, Version=7.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\Libs\Release\scripts\ClearScript.Core.dll</HintPath>
+    </Reference>
+    <Reference Include="ClearScript.V8, Version=7.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\Libs\Release\scripts\ClearScript.V8.dll</HintPath>
+    </Reference>
     <Reference Include="LemonUI.SHVDN3, Version=1.5.1.0, Culture=neutral, processorArchitecture=AMD64">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\Libs\Release\scripts\LemonUI.SHVDN3.dll</HintPath>
@@ -81,6 +91,7 @@
     <Compile Include="Entities\EntitiesThread.cs" />
     <Compile Include="Entities\Player\Sync\OnFootSync.cs" />
     <Compile Include="Entities\Player\Sync\VehicleSync.cs" />
+    <Compile Include="JavascriptHook.cs" />
     <Compile Include="Main.cs" />
     <Compile Include="Menus\MenusMain.cs" />
     <Compile Include="Menus\Sub\Servers.cs" />

Client/JavascriptHook.cs

@@ -0,0 +1,57 @@
+using System;
+
+using Microsoft.ClearScript.V8;
+
+using GTA;
+
+namespace CoopClient
+{
+    /// <summary>
+    /// Don't use this!
+    /// </summary>
+    public class JavascriptHook : Script
+    {
+        private bool LoadedEngine = false;
+
+        private static V8ScriptEngine ScriptEngine;
+
+        /// <summary>
+        /// Don't use this!
+        /// </summary>
+        public JavascriptHook()
+        {
+            Tick += Ontick;
+        }
+
+        private void Ontick(object sender, EventArgs e)
+        {
+            if (!Main.MainNetworking.IsOnServer())
+            {
+                return;
+            }
+
+            if (!LoadedEngine)
+            {
+                ScriptEngine = new V8ScriptEngine();
+                LoadedEngine = true;
+
+                ScriptEngine.AddHostObject("script", new ScriptContext());
+                ScriptEngine.Execute(System.IO.File.ReadAllText("scripts\\test.js"));
+            }
+        }
+    }
+
+    /// <summary>
+    /// FOR JAVASCRIPT ONLY!
+    /// </summary>
+    public class ScriptContext
+    {
+        /// <summary>
+        /// Don't use this!
+        /// </summary>
+        public void SendMessage(string message)
+        {
+            Main.MainChat.AddMessage("JAVASCRIPT", message);
+        }
+    }
+}