Add Text rendering

- Add FreeType as dependency
- Add MsdfGen as dependency
- Add MsdfAtlasGen as dependency

CopiumEngine/ext/include/msdf-atlas-gen/artery-font-export.h

@@ -0,0 +1,27 @@
+
+#pragma once
+
+#ifndef MSDF_ATLAS_NO_ARTERY_FONT
+
+#include <msdfgen.h>
+#include <msdfgen-ext.h>
+#include "types.h"
+#include "FontGeometry.h"
+
+namespace msdf_atlas {
+
+struct ArteryFontExportProperties {
+    double fontSize;
+    double pxRange;
+    ImageType imageType;
+    ImageFormat imageFormat;
+    YDirection yDirection;
+};
+
+/// Encodes the atlas bitmap and its layout into an Artery Atlas Font file
+template <typename REAL, typename T, int N>
+bool exportArteryFont(const FontGeometry *fonts, int fontCount, const msdfgen::BitmapConstRef<T, N> &atlas, const char *filename, const ArteryFontExportProperties &properties);
+
+}
+
+#endif