Switch to always using a steady clock (closes #2200)

Utilities/types.h

@@ -11,6 +11,7 @@
 #include <cstdint>
 #include <type_traits>
 #include <utility>
+#include <chrono>
 
 // Assume little-endian
 #define IS_LE_MACHINE 1
@@ -80,6 +81,10 @@ using s16 = std::int16_t;
 using s32 = std::int32_t;
 using s64 = std::int64_t;
 
+using steady_clock = std::conditional<
+    std::chrono::high_resolution_clock::is_steady,
+    std::chrono::high_resolution_clock, std::chrono::steady_clock>::type;
+
 namespace gsl
 {
 	enum class byte : u8;