Add trigdx_config.hpp and trigdx.hpp header files

include/trigdx/trigdx.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <trigdx/trigdx_config.hpp>
+
+#include <trigdx/reference.hpp>
+#include <trigdx/lookup.hpp>
+#include <trigdx/lookup_avx.hpp>
+
+#if TRIGDX_USE_MKL
+#include <trigdx/mkl.hpp>
+#endif
+
+#if TRIGDX_USE_GPU
+#include <trigdx/gpu.hpp>
+#endif
+
+#if TRIGDX_USE_XSIMD
+#include <trigdx/lookup_xsimd.hpp>
+#endif