Update .NET version & deps for RW 1.1

Source/BetterLoading.csproj

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>BetterLoading</RootNamespace>
     <AssemblyName>BetterLoading</AssemblyName>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <LangVersion>8</LangVersion>
     <Nullable>annotations</Nullable>
@@ -38,7 +38,7 @@
       <HintPath>packages\UnlimitedHugs.Rimworld.HugsLib.6.1.1\lib\net35\0Harmony.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Assembly-CSharp, Version=1.0.7213.22423, Culture=neutral, PublicKeyToken=null">
+    <Reference Include="Assembly-CSharp, Version=1.1.7352.18995, Culture=neutral, PublicKeyToken=null">
       <HintPath>..\..\..\RimWorldWin64_Data\Managed\Assembly-CSharp.dll</HintPath>
       <Private>False</Private>
     </Reference>
@@ -54,6 +54,18 @@
       <HintPath>C:\Program Files (x86)\Steam\steamapps\common\RimWorld\RimWorldWin64_Data\Managed\UnityEngine.dll</HintPath>
       <Private>False</Private>
     </Reference>
+    <Reference Include="UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\..\..\RimWorldWin64_Data\Managed\UnityEngine.CoreModule.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="UnityEngine.IMGUIModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\..\..\RimWorldWin64_Data\Managed\UnityEngine.IMGUIModule.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="UnityEngine.TextRenderingModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\..\..\RimWorldWin64_Data\Managed\UnityEngine.TextRenderingModule.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="BetterLoadingApi.cs" />