Make SHA1 optional, implement SHA256 fingerprints SHA256 is always compiled and only enable SHA1 when needed. Fingerprints are always SHA256: base64 format, md5 and sha1 are removed. dbrandom now uses sha256 its hash function.

#include "fuzz.h"

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
	return fuzz_run_server(Data, Size, 0, 0);
}