[Request] Make the RegisterDataType enum public

[spcan]

Is your feature request related to a problem? Please describe.

I'm trying to use probe_rs as a dependency and the enum probe_rs::core::RegisterDataType is not publicly available, which I need in order to properly format a register's data once it is read.

Describe the solution you'd like

There are two easy solutions
· Make the core module public (in lib.rs change to pub mod core in line 75)
· Make the enum public (in lib.rs add RegisterDataType to the import in lines 93-97)

Describe alternatives you've considered

No available alternatives except by using non generic enums in my app that simply reimplement the same functionality of this enum already.

Additional context

None

[noppej]

The second option seems reasonable. Are you willing to PR it?