ExampleBrowser.Android: set debug type to portable

* warning XA0125: 'ExampleBrowser.pdb' is using a deprecated debug information level.
* warning XA0125: Set the debugging information to Portable in the Visual Studio project property pages or edit the project file in a text editor and set the 'DebugType' MSBuild property to 'portable' to use the newer, cross-platform debug information level.

Author: janusw

Source/Examples/ExampleBrowser.Android/ExampleBrowser.Android.csproj

@@ -27,7 +27,7 @@
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>True</DebugSymbols>
-    <DebugType>full</DebugType>
+    <DebugType>portable</DebugType>
     <Optimize>False</Optimize>
     <OutputPath>bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
@@ -37,6 +37,7 @@
     <AndroidSupportedAbis>arm64-v8a;x86;x86_64;armeabi-v7a</AndroidSupportedAbis>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
     <DebugType>pdbonly</DebugType>
     <Optimize>True</Optimize>
     <OutputPath>bin\Release\</OutputPath>