Add misc\get-date.c

Prints the current date as YYYYMMDD without relying on PowerShell.

Hopefully fixes #4540

misc/get-date.c

@@ -0,0 +1,13 @@
+/*
+	Prints the current date as YYYYMMDD
+
+	e.g. 2024-12-25
+*/
+#include <stdio.h>
+#include <time.h>
+
+int main(int arg_count, char const **arg_ptr) {
+	time_t t = time(NULL);
+	struct tm* now = localtime(&t);
+	printf("%04d%02d%02d", now->tm_year + 1900, now->tm_mon + 1, now->tm_mday);
+}