LogManager: Use colors for logging when possible

FEXCore/include/FEXCore/Utils/LogManager.h

@@ -6,6 +6,7 @@
 #include <cstdarg>
 
 #include <fmt/format.h>
+#include <fmt/color.h>
 
 namespace LogMan {
 enum DebugLevels {
@@ -31,6 +32,16 @@ static inline const char* DebugLevelStr(uint32_t Level) {
   }
 }
 
+static inline fmt::text_style DebugLevelStyle(uint32_t Level) {
+  switch (Level) {
+  case LogMan::ASSERT: return fmt::bg(fmt::color::red) | fmt::emphasis::bold | fmt::fg(fmt::color::white);
+  case LogMan::ERROR: return fmt::fg(fmt::color::red);
+  case LogMan::DEBUG: return fmt::fg(fmt::color::gray);
+  case LogMan::INFO: return fmt::fg(fmt::color::green);
+  default: return {}; break;
+  }
+}
+
 constexpr DebugLevels MSG_LEVEL = INFO;
 
 // Note that all logging functions with the Fmt or _FMT suffix on them expect