Enums in grpc-labview don't support the "=" or ";" characters

[pbirkhol-ni]

grpc-labview's intermediate representation of enum key/value pairs is as follows:

string1=value1;string2=value2;string3=values3

This means that adding an = or ; to your enum string will cause grpc-labview to either corrupt memory or crash. This has been an issue for MeasurementLink because we can't control what our customers add to their enums. If their enums have a = or ; and we call Register Enum Metadata.vi, bad things will happen.

To workaround this issue, MeasurementLink is checking the enum strings before calling Register Enum Metadata.vi and throwing a helpful error if the enum contains an invalid character. However, grpc-labview should really consider using a standard format for the intermediate representation rather than inventing their own. For example, json wouldn't have such restrictions.

I realize that various grpc style guides prohibit special characters like ; and =. This bug is more about recommending that you don't invent your own tokenization code and instead use an industry standard.

AB#2599407