Add SCPI_Param tests for Int32, UInt32, Int64 and UInt64

Jan Breuer

2015-10-08 8746b911b06fe0fc3060c9c12493c13edfcdbd7e

 libscpi/src/utils.c

@@ -179,7 +179,7 @@
    } else {

        switch (base) {
            case 2: 
            case 2:
                x = 0x8000000000000000ULL;
                break;
            case 8: