win32: optimize the console and logging logic

Currently one has to explicitly use --win32console and/or
--win32log to enable a dedicated console (a console window
that opens next to the Subsurface window) or to enable file
logging on Win32.

This patch makes the following changes:
- removes the --win32* command line arguments
- removes the dedicated console window support
- if the app starts from a shortcut and not from a console, always
redirect stderr and stdout to _err & _out log files
- if the app starts from a console redirect stderr and stdout to that
console

Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>

subsurface-mobile-main.cpp

@@ -28,9 +28,7 @@ int main(int argc, char **argv)
 	(void)application;
 	QStringList arguments = QCoreApplication::arguments();
 
-	bool dedicated_console = arguments.length() > 1 &&
-				 (arguments.at(1) == QString("--win32console"));
-	subsurface_console_init(dedicated_console, false);
+	subsurface_console_init();
 
 	for (i = 1; i < arguments.length(); i++) {
 		QString a = arguments.at(i);