New Matchers implementation

- simpler
- less templates and machinery
- no cloning, copying or unnecessary heap allocations
- better factored

include/catch.hpp

@@ -36,7 +36,7 @@
 #include "internal/catch_generators.hpp"
 #include "internal/catch_interfaces_exception.h"
 #include "internal/catch_approx.hpp"
-#include "internal/catch_matchers.hpp"
+#include "internal/catch_matchers_string.hpp"
 #include "internal/catch_compiler_capabilities.h"
 #include "internal/catch_interfaces_tag_alias_registry.h"