finalise interface & documentation

Signed-off-by: Folling <mail@folling.io>

src/projects/project.hpp

@@ -0,0 +1,10 @@
+#include "ikarus/project/project.h"
+
+#include <filesystem>
+#include <string>
+
+/// \private
+struct IkarusProject {
+    std::string name;
+    std::filesystem::path path;
+};