Adding basic test project files

Added the main source file for running tests in. Added premake4.lua so
you can create a project for "any" platform/target of your choice.
Added gitignore to only add those basic files, ignore everything else.

tests/.gitignore

@@ -0,0 +1,8 @@
+# Since we're using premake4, only include test source file and the premake4.lua,
+# everything else can go.
+
+*.*
+
+!.gitignore
+!main.cpp
+!premake4.lua

tests/main.cpp

@@ -0,0 +1,6 @@
+#include "math/Vector3.h"
+
+int main()
+{
+	return 0;
+}

tests/premake4.lua

@@ -0,0 +1,50 @@
+-- http://www.ogre3d.org/tikiwiki/tiki-index.php?page=Premake
+-- http://industriousone.com/command-line-arguments
+-- http://blog.assarbad.net/20120929/premake4-snippet-to-create-solution-names-depending-on-target-visual-studio-version/
+
+solution "tests"
+
+	location "."
+	configurations { "Debug", "Release" }
+	platforms { "native", "x32", "x64", "universal" }
+	flags { "ExtraWarnings" }
+
+	configuration "Debug"
+		defines { "DEBUG", "TRACE" }
+		flags { "Symbols" }
+	
+	configuration "Release"
+		defines { "NDEBUG", "TRACE" }
+		flags { "Optimize" }
+
+
+	-- Project kinds
+		-- ConsoleApp
+		-- Makefile
+		-- SharedLib
+		-- StaticLib
+		-- WindowedApp
+
+	project "tests"
+		kind "ConsoleApp"
+		language "C++"
+		targetdir "bin"
+		files { "../src/**.cpp", "main.cpp" }
+
+		includedirs {
+			"../include",
+		}
+
+		configuration "Debug"
+			defines { "DEBUG", "USE_CHEATS", "TRACE" }
+			flags { "Symbols" }
+			targetsuffix "_d"
+		
+		configuration "Release"
+			defines { "NDEBUG", "USE_CHEATS", "TRACE" }
+			flags { "Optimize" }
+
+		configuration { "x64", "debug" }
+			targetsuffix "x64_d"
+		configuration { "x64", "release" }
+			targetsuffix "x64"