add tracy

libs/tracy/library/unix/Makefile

@@ -0,0 +1,17 @@
+all: release
+
+debug:
+	@$(MAKE) -f debug.mk all
+
+release:
+	@$(MAKE) -f release.mk all
+
+clean:
+	@$(MAKE) -f build.mk clean
+	rm -f libtracy-*.so
+
+db: clean
+	@bear -- $(MAKE) -f debug.mk all
+	@mv -f compile_commands.json ../../
+
+.PHONY: all clean debug release db