[DO-978] openssl package (!8)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/8

recipes/openssl/3.x.x/test_package/test_package.c

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <openssl/ssl.h>
+
+void digest();
+int digest_legacy();
+
+int main()
+{
+	int legacy_result = 0;
+	OPENSSL_init_ssl(0, NULL);
+	printf("OpenSSL version: %s\n", OpenSSL_version(OPENSSL_VERSION));
+	
+	digest();
+
+#if defined(TEST_OPENSSL_LEGACY)
+	legacy_result = digest_legacy();
+	if (legacy_result != 0) {
+		printf("Error testing the digest_legacy() function\n");
+		return 1;
+	}
+#endif
+
+	return 0;
+}