Add all possible units from IEEE488.2 to address some points of #26

Jan Breuer

2016-02-22 e7d3092dd149ce455eaa934cc63104b6273302f5

 libscpi/src/minimal.c

@@ -131,7 +131,7 @@
scpi_result_t SCPI_StatusQuestionableEnable(scpi_t * context) {
    int32_t new_QUESE;
    if (SCPI_ParamInt32(context, &new_QUESE, TRUE)) {
        SCPI_RegSet(context, SCPI_REG_QUESE, (scpi_reg_val_t)new_QUESE);
        SCPI_RegSet(context, SCPI_REG_QUESE, (scpi_reg_val_t) new_QUESE);
    }
    return SCPI_RES_OK;
}