Options Logic Cleanup (#71)

* Output/Logging Overhaul
* Added StandardOut class
* Renamed LOGX macros to LOG_X
* Removed LogMsg macros in favor of LOG_X
* Added console window for debug Windows builds

* Options Refactor
* Moved options loading code from AppPlatform classes to Options class
* Added AppPlatform::singleton()
* Minecraft::m_options is now only accessible via Minecraft::getOptions() (as it should be)
* Making this work with SDL2 next

* Options Cleanup for SDL2

* Added AppPlatform::hasFileSystemAccess()
* Options won't try to load if hasFileSystemAccess returns false. Emscripten build will be happy.

---------

Co-authored-by: Brent Da Mage <BrentDaMage@users.noreply.github.com>

source/common/StandardOut.cpp

@@ -0,0 +1,46 @@
+#include <iostream>
+#include <stdarg.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+#include "StandardOut.hpp"
+#include "Util.hpp"
+
+StandardOut* const StandardOut::singleton()
+{
+    // This is automatically allocated when accessed for the first time,
+    // and automatically deallocated when runtime concludes.
+    static StandardOut standardOut = StandardOut();
+    return &standardOut;
+}
+
+void StandardOut::print(const char* const str)
+{
+    std::cout << str << std::endl;
+#ifdef _WIN32
+    OutputDebugStringA(str);
+    OutputDebugStringA("\n");
+#endif
+}
+
+void StandardOut::print(std::string str)
+{
+    print(str.c_str());
+}
+
+void StandardOut::vprintf(const char* const fmt, va_list argPtr)
+{
+    print(Util::vformat(fmt, argPtr));
+}
+
+void StandardOut::printf(const char* const fmt, ...)
+{
+    va_list argList;
+    va_start(argList, fmt);
+
+    vprintf(fmt, argList);
+
+    va_end(argList);
+}