Implement --debugger option to improve UX when debugging crashes (#13157)

src/porting.h

@@ -155,6 +155,11 @@ extern std::string path_locale;
 */
 extern std::string path_cache;
 
+/*
+	Gets the path of our executable.
+*/
+bool getCurrentExecPath(char *buf, size_t len);
+
 /*
 	Get full path of stuff in data directory.
 	Example: "stone.png" -> "../data/stone.png"
@@ -330,6 +335,11 @@ bool secure_rand_fill_buf(void *buf, size_t len);
 // This attaches to the parents process console, or creates a new one if it doesnt exist.
 void attachOrCreateConsole();
 
+#ifdef _WIN32
+// Quotes an argument for use in a CreateProcess() commandline (not cmd.exe!!)
+std::string QuoteArgv(const std::string &arg);
+#endif
+
 int mt_snprintf(char *buf, const size_t buf_size, const char *fmt, ...);
 
 /**