Implemented cross-platform logger framework (and clean-up)

UnleashedRecomp/os/win32/logger_win32.cpp

@@ -0,0 +1,47 @@
+#include <os/logger_detail.h>
+
+#define FOREGROUND_WHITE  (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE)
+#define FOREGROUND_YELLOW (FOREGROUND_RED | FOREGROUND_GREEN)
+
+HANDLE g_hStandardOutput = nullptr;
+
+void os::logger::detail::Log(const std::string& str, detail::ELogType type, const char* func)
+{
+#if !_DEBUG
+    if (type == ELogType::Utility)
+        return;
+#endif
+
+    if (!g_hStandardOutput)
+        g_hStandardOutput = GetStdHandle(STD_OUTPUT_HANDLE);
+
+    switch (type)
+    {
+        case ELogType::Utility:
+            SetConsoleTextAttribute(g_hStandardOutput, FOREGROUND_GREEN | FOREGROUND_INTENSITY);
+            break;
+
+        case ELogType::Warning:
+            SetConsoleTextAttribute(g_hStandardOutput, FOREGROUND_YELLOW | FOREGROUND_INTENSITY);
+            break;
+
+        case ELogType::Error:
+            SetConsoleTextAttribute(g_hStandardOutput, FOREGROUND_RED | FOREGROUND_INTENSITY);
+            break;
+
+        default:
+            SetConsoleTextAttribute(g_hStandardOutput, FOREGROUND_WHITE);
+            break;
+    }
+
+    if (func)
+    {
+        printf("[%s] %s\n", func, str.c_str());
+    }
+    else
+    {
+        printf("%s\n", str.c_str());
+    }
+
+    SetConsoleTextAttribute(g_hStandardOutput, FOREGROUND_WHITE);
+}