add GoogleTest gtest-1.7.0 and simple hello_gtest (preparation for unit tests)

Test/hello_gtest/premake4.lua

@@ -0,0 +1,31 @@
+
+	project "hello_gtest"
+		
+	kind "ConsoleApp"
+	
+--	defines {  }
+	
+	targetdir "../../bin"
+	
+	includedirs 
+	{
+		".","../gtest-1.7.0/include"
+	}
+
+--        linkLib "gtest"			
+	links "gtest"
+	
+	
+	files {
+		"**.cpp",
+		"**.h",
+	--	"../gtest-1.7.0/src/gtest_main.cc"
+	}
+	if os.is("Windows") then
+	end
+
+	if os.is("Linux") then 
+	end
+
+	if os.is("MacOSX") then
+	end