Clean up SwitcherData

* Moved various functions, members, and definitions
 * Separated out priority related functionality
 * Visually grouped various function groups

src/utils/priority-helper.hpp

@@ -0,0 +1,19 @@
+#pragma once
+#include <vector>
+#include <string>
+
+#include <obs-data.h>
+
+namespace advss {
+
+struct ThreadPrio {
+	std::string name;
+	std::string description;
+	uint32_t value;
+};
+
+std::vector<int> GetDefaultFunctionPriorityList();
+void SetDefaultFunctionPriorities(obs_data_t *);
+std::vector<ThreadPrio> GetThreadPrioMapping();
+
+} // namespace advss