Update Freeze transaction to use instant in time

[ljianghedera]

Problem

Currently, the freeze transaction is sending startHour, startMin, endHour, endMin to specify that the services should be frozen at startHour and startMin from now, and should wake up at endHour and endMin from now.

Need to change this to use startTime and endTime of Instant to.

Solution

Need to make the following change of the FreezeTransactionBody:

message FreezeTransactionBody {
    int32 startHour = 1 [deprecated = true]; // The start hour (in UTC time), a value between 0 and 23
    int32 startMin = 2 [deprecated = true]; // The start minute (in UTC time), a value between 0 and 59
    int32 endHour = 3 [deprecated = true]; // The end hour (in UTC time), a value between 0 and 23
    int32 endMin = 4 [deprecated = true]; // The end minute (in UTC time), a value between 0 and 59
    FileID updateFile = 5; // The ID of the file needs to be updated during a freeze transaction
    bytes fileHash = 6; // The hash value of the file, used to verify file content before performing freeze and update
    Timestamp startTime = 7; // the freeze start Timestamp
}

Alternatives

No response