Display, control and valueAlarm fields not set for monitors

[dhickin]

When you create a channel monitor to a pvaSrv PV requesting the display, control or valueAlarm fields then these fields are not filled in:

$ pvget -m -r "field()" double01
double01
epics:nt/NTScalar:1.0 
    double value 0
    alarm_t alarm INVALID RECORD UDF_ALARM
    time_t timeStamp <undefined> 0
    display_t display
        double limitLow 0
        double limitHigh 0
        string description 
        string format 
        string units 
    control_t control
        double limitLow 0
        double limitHigh 0
        double minStep 0
    valueAlarm_t valueAlarm
        boolean active false
        double lowAlarmLimit 0
        double lowWarningLimit 0
        double highWarningLimit 0
        double highAlarmLimit 0
        int lowAlarmSeverity 0
        int lowWarningSeverity 0
        int highWarningSeverity 0
        int highAlarmSeverity 0
        double hysteresis 0

whereas for gets they are:

$ pvget  -r "field()" double01
double01
epics:nt/NTScalar:1.0 
    double value 0
    alarm_t alarm INVALID RECORD UDF_ALARM
    time_t timeStamp <undefined> 0
    display_t display
        double limitLow 0
        double limitHigh 10
        string description 
        string format %.1f
        string units Counts
    control_t control
        double limitLow 0
        double limitHigh 10
        double minStep 0
    valueAlarm_t valueAlarm
        boolean active false
        double lowAlarmLimit 2
        double lowWarningLimit 4
        double highWarningLimit 6
        double highAlarmLimit 8
        int lowAlarmSeverity 0
        int lowWarningSeverity 0
        int highWarningSeverity 0
        int highAlarmSeverity 0
        double hysteresis 0

[dhickin]

#47 ensures that the correct data is initially.
#49 will ensure it is there is a change to a property field and then a change to value, alarm or timeStamp then the change will be picked up. The change will not be picked up without a change to value/alarm/timeStamp without more work.