Added general-purpose compilation options from Embeddinator.

Author: tritao

src/Core/Platform.cs

@@ -3,6 +3,16 @@
 
 namespace CppSharp
 {
+    public enum TargetPlatform
+    {
+        Windows,
+        Android,
+        MacOS,
+        iOS,
+        WatchOS,
+        TVOS
+    }
+
     public static class Platform
     {
         public static bool IsWindows

src/Generator/Options.cs

@@ -8,6 +8,13 @@
 
 namespace CppSharp
 {
+    public enum CompilationTarget
+    {
+        SharedLibrary,
+        StaticLibrary,
+        Application
+    }
+
     public class DriverOptions
     {
         public DriverOptions()
@@ -118,6 +125,29 @@ public bool DoAllModulesHaveLibraries() =>
 
         #endregion
 
+        #region Compilation options (Embeddinator-specific for now)
+
+        /// <summary>
+        /// Target platform for code compilation.
+        /// </summary>
+        public TargetPlatform Platform;
+
+        /// <summary>
+        /// Specifies the VS version.
+        /// </summary>
+        /// <remarks>When null, latest is used.</remarks>
+        public VisualStudioVersion VsVersion;
+
+        // If code compilation is enabled, then sets the compilation target.
+        public CompilationTarget Target;
+
+        // If true, will compile the generated as a shared library / DLL.
+        public bool CompileSharedLibrary => Target == CompilationTarget.SharedLibrary;
+
+        // If true, will force the generation of debug metadata for the native
+        // and managed code.
+        public bool DebugMode;
+
         #endregion
 
         #region Generator options