Catch include path updated as suggested by upstream.

test/ScopeExitTest.cpp

 
 #include "scope_exit.h"
 #include "CallMocks.h"
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 
 using namespace mock;
 using namespace trompeloeil;

test/ScopeFailTest.cpp

 
 #include "scope_fail.h"
 #include "CallMocks.h"
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 
 using namespace mock;
 using namespace trompeloeil;

test/ScopeSuccessTest.cpp

 
 #include "scope_success.h"
 #include "CallMocks.h"
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 
 using namespace mock;
 using namespace trompeloeil;

test/TestMain.cpp

 // SOFTWARE.
 
 #define CATCH_CONFIG_MAIN
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 #include <trompeloeil.hpp>
 
 

test/UniqueResourceTest.cpp

 
 #include "unique_resource.h"
 #include "CallMocks.h"
-#include <catch.hpp>
+#include <catch2/catch.hpp>
 #include <trompeloeil.hpp>
 
 using namespace mock;