Refactor, fixes and maximized option for title tab (#40)

* move definitions of switcher structs to separate files

* remove useless comment

* cleanup and silence warnings

* add generic switch

* removed delay on main thread startup as it served no purpose

* clean up ultility.hpp

* do not save switchStr to file as it could cause issues when scenes are renamed

* rename sceneRoundTrip to sceneSequence

* add option to switch if window is maximized to title tab

src/headers/switch-file.hpp

@@ -0,0 +1,44 @@
+#pragma once
+#include <string>
+#include "utility.hpp"
+#include "switch-generic.hpp"
+
+constexpr auto read_file_func = 0;
+constexpr auto default_priority_0 = read_file_func;
+
+struct FileSwitch : SceneSwitcherEntry {
+	std::string file;
+	std::string text;
+	bool remote = false;
+	bool useRegex = false;
+	bool useTime = false;
+	QDateTime lastMod;
+
+	const char *getType() { return "file"; }
+
+	inline FileSwitch(OBSWeakSource scene_, OBSWeakSource transition_,
+			  const char *file_, const char *text_, bool remote_,
+			  bool useRegex_, bool useTime_)
+		: SceneSwitcherEntry(scene_, transition_),
+		  file(file_),
+		  text(text_),
+		  remote(remote_),
+		  useRegex(useRegex_),
+		  useTime(useTime_),
+		  lastMod()
+	{
+	}
+};
+
+struct FileIOData {
+	bool readEnabled = false;
+	std::string readPath;
+	bool writeEnabled = false;
+	std::string writePath;
+};
+
+static inline QString MakeFileSwitchName(const QString &scene,
+					 const QString &transition,
+					 const QString &fileName,
+					 const QString &text, bool useRegex,
+					 bool useTime);