Add project files (part 1/2)

Co-Authored-By: Claude Sonnet 5 <[email protected]>

third_party/minicrt/include/stdio.h

@@ -0,0 +1,24 @@
+#pragma once
+#include <stddef.h>
+#include <stdarg.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+typedef struct _iobuf FILE;
+FILE *fopen(const char *, const char *);
+int fclose(FILE *);
+size_t fread(void *, size_t, size_t, FILE *);
+int fseek(FILE *, long, int);
+int feof(FILE *);
+int fopen_s(FILE **, const char *, const char *);
+long ftell(FILE *);
+int sprintf(char *, const char *, ...);
+int snprintf(char *, size_t, const char *, ...);
+// diagnostics printing of the bundled libraries is not wanted in the client
+#define printf(...) ((void)0)
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+#ifdef __cplusplus
+}
+#endif