ENH Provide detector names at reader construction

[drewejohnson]

Is your feature request related to a problem? Please describe.
Spin out from #339 to focus on providing relevant settings to the detector reader at construction

Describe the solution you'd like
Pass a list of detector names to process at construction.

Describe alternatives you've considered
Using the global settings object which #339 intends to deprecate

Additional context
Deprecation timeline #339 (comment)