Move common stuff in seperate trabanslation unit

Rename main to madap

src/common.h

@@ -0,0 +1,13 @@
+#include <filesystem>
+#include <vector>
+#include <eisgenerator/eistype.h>
+
+struct ModelData
+{
+	std::string modelStr;
+	std::string id;
+	std::vector<eis::DataPoint> data;
+};
+
+bool saveData(const std::string& exportName, const ModelData& data, const std::filesystem::path& outDir, const std::filesystem::path& originFile);
+bool checkDir(const std::filesystem::path& outDir);