add some plumbing for a PJM importer

BizHawk.Client.Common/BizHawk.Client.Common.csproj

@@ -181,6 +181,7 @@
     <Compile Include="movie\conversions\MovieConversionExtensions.cs" />
     <Compile Include="movie\HeaderKeys.cs" />
     <Compile Include="movie\import\MovieImport.cs" />
+    <Compile Include="movie\import\PJMImport.cs" />
     <Compile Include="movie\interfaces\ILogEntryGenerator.cs" />
     <Compile Include="movie\interfaces\IMovie.cs" />
     <Compile Include="movie\interfaces\IMovieController.cs" />

BizHawk.Client.Common/movie/import/MovieImport.cs

@@ -69,11 +69,17 @@ namespace BizHawk.Client.Common
 		// Attempt to import another type of movie file into a movie object.
 		public static Bk2Movie ImportFile(string path, out string errorMsg, out string warningMsg)
 		{
-			BkmMovie m = new BkmMovie();
 			errorMsg = string.Empty;
 			warningMsg = string.Empty;
-
 			string ext = path != null ? Path.GetExtension(path).ToUpper() : string.Empty;
+
+			if (ext == ".PJM")
+			{
+				return PJMImport.Import(path, out errorMsg, out warningMsg);
+			}
+
+			BkmMovie m = new BkmMovie();
+
 			try
 			{
 				switch (ext)

BizHawk.Client.Common/movie/import/PJMImport.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace BizHawk.Client.Common
+{
+	public static class PJMImport
+	{
+		public static Bk2Movie Import(string path, out string errorMsg, out string warningMsg)
+		{
+			errorMsg = string.Empty;
+			warningMsg = string.Empty;
+			return new Bk2Movie();
+		}
+	}
+}