[DO-981] qt package (!15)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/15

recipes/libpq/all/test_package/test_package.c

@@ -0,0 +1,17 @@
+#include "libpq-fe.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+
+int main() {
+    PGconn *conn = NULL;
+    const int version = PQlibVersion();
+    printf("PQlibVersion: %d\n", version);
+
+    conn = PQconnectdb("dbname = postgres");
+    PQstatus(conn);
+
+    PQfinish(conn);
+    return EXIT_SUCCESS;
+}