add a vs2015 sln and stuff, but it only uses the vs2010 toolset. thats the lazy way. works ok though.

desmume/src/windows/DeSmuME_2015.sln

@@ -0,0 +1,32 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "DeSmuME_VS2015", "DeSmuME_2015.vcxproj", "{9F5F72A1-D3A5-4918-B460-E076B16D10A9}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Dev+|Win32 = Dev+|Win32
+		Dev+|x64 = Dev+|x64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Debug|Win32.ActiveCfg = Debug|Win32
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Debug|Win32.Build.0 = Debug|Win32
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Debug|x64.ActiveCfg = Debug|x64
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Debug|x64.Build.0 = Debug|x64
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Dev+|Win32.ActiveCfg = Dev+|Win32
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Dev+|Win32.Build.0 = Dev+|Win32
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Dev+|x64.ActiveCfg = Dev+|x64
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Dev+|x64.Build.0 = Dev+|x64
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Release|Win32.ActiveCfg = Release|Win32
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Release|Win32.Build.0 = Release|Win32
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Release|x64.ActiveCfg = Release|x64
+		{9F5F72A1-D3A5-4918-B460-E076B16D10A9}.Release|x64.Build.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal