Merge branch 'feat/x-files' into 'main'

Use X-macros to generate all combinations of supported Eigen Matrix types

Co-authored-by: Joel Falcou <joel.falcou@lri.fr>

See merge request oss/rotgen!8

test/unit/basic/io.cpp

@@ -0,0 +1,20 @@
+//==================================================================================================
+/*
+  ROTGEN - Runtime Overlay for Eigen
+  Copyright : CODE RECKONS
+  SPDX-License-Identifier: BSL-1.0
+*/
+//==================================================================================================
+#include "unit/tests.hpp"
+#include <rotgen/matrix.hpp>
+#include <sstream>
+
+TTS_CASE_TPL("Sample test", rotgen::tests::types)
+<typename T, typename O>( tts::type< tts::types<T,O>> )
+{
+  rotgen::matrix<T,rotgen::Dynamic,rotgen::Dynamic,O::value> x({ {1,2} , {3,4} });
+  std::ostringstream os;
+  os << x;
+
+  TTS_EQUAL(os.str(), std::string{"1 2\n3 4"});
+};