update compiler flags, fix tracy allocation profiling, fix compiler warnings

src/tracy.cpp

@@ -0,0 +1,17 @@
+#include "tracy.hpp"
+
+#include <tracy/Tracy.hpp>
+
+void *operator new(std::size_t count) {
+  auto ptr = malloc(count);
+  TracyAlloc(ptr, count);
+  return ptr;
+}
+void operator delete(void *ptr) noexcept {
+  TracyFree(ptr);
+  free(ptr);
+}
+void operator delete(void *ptr, std::size_t count) noexcept {
+  TracyFree(ptr);
+  free(ptr);
+}