Added MSVS2015 build solution

.gitignore

@@ -4,3 +4,10 @@ build/VS2008/*.suo
 build/VS2008/*.user
 build/VS2008/allegro.dir/*
 build/VS2008/lib/*
+
+build/VS2015/*.db
+build/VS2015/*.opendb
+build/VS2015/*.user
+build/VS2015/.vs/*
+build/VS2015/allegro.dir/*
+build/VS2015/lib/*

build/VS2015/ALLEGRO.sln

@@ -0,0 +1,27 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25420.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "allegro", "allegro.vcxproj", "{162C46E1-F32B-3B4A-BFD3-967081A09DD0}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug MD|Win32 = Debug MD|Win32
+		Debug MT|Win32 = Debug MT|Win32
+		Release MD|Win32 = Release MD|Win32
+		Release MT|Win32 = Release MT|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Debug MD|Win32.ActiveCfg = Debug MD|Win32
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Debug MD|Win32.Build.0 = Debug MD|Win32
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Debug MT|Win32.ActiveCfg = Debug MT|Win32
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Debug MT|Win32.Build.0 = Debug MT|Win32
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Release MD|Win32.ActiveCfg = Release MD|Win32
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Release MD|Win32.Build.0 = Release MD|Win32
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Release MT|Win32.ActiveCfg = Release MT|Win32
+		{162C46E1-F32B-3B4A-BFD3-967081A09DD0}.Release MT|Win32.Build.0 = Release MT|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal