implement InstallationStatus from MBS Framework for Android

MBS.Framework/Application.cs

@@ -33,6 +33,12 @@ namespace MBS.Framework
 		public string Title { get; set; } = String.Empty;
 		public int ExitCode { get; protected set; } = 0;
 
+		protected virtual InstallationStatus GetInstallationStatusInternal()
+		{
+			return InstallationStatus.Unknown;
+		}
+		public InstallationStatus InstallationStatus { get { return GetInstallationStatusInternal(); } }
+
 		public CommandLine CommandLine { get; protected set; } = null;
 
 		public Application()

MBS.Framework/InstallationStatus.cs

@@ -0,0 +1,47 @@
+//
+//  InstallationStatus.cs
+//
+//  Author:
+//       Michael Becker <alcexhim@gmail.com>
+//
+//  Copyright (c) 2021 Mike Becker's Software
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+using System;
+namespace MBS.Framework
+{
+	public enum InstallationStatus
+	{
+		/// <summary>
+		/// The application installation status cannot be determined.
+		/// </summary>
+		Unknown,
+		/// <summary>
+		/// Indicates that the application has been launched before.
+		/// </summary>
+		Installed,
+		/// <summary>
+		/// Indicates that the application is launching for the first time, or the user has cleared the shared application data.
+		/// </summary>
+		New,
+		/// <summary>
+		/// Indicates that the application has been upgraded since it was last run.
+		/// </summary>
+		Upgraded,
+		/// <summary>
+		/// On Microsoft Windows, indicates an application that has been advertised by the Windows Installer system but has not actually been installed on the user's computer.
+		/// </summary>
+		Advertised
+	}
+}

MBS.Framework/MBS.Framework.csproj

@@ -95,6 +95,7 @@
     <Compile Include="Scripting\ScriptEnvironment.cs" />
     <Compile Include="Collections\Generic\ExtensionMethods.cs" />
     <Compile Include="ISupportsExtraData.cs" />
+    <Compile Include="InstallationStatus.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Logic\" />