ENH Pass settings to BranchingReader at construction #523
Description
Is your feature request related to a problem? Please describe.
Spin out from #339 to focus on providing relevant settings to the branching reader at construction
Describe the solution you'd like
Similar options and construction for the results reader (#521) but with additionally controlling intVariables and floatVariables
Describe alternatives you've considered
Using the global settings object which #339 intends to deprecate
Additional context
Deprecation timeline #339 (comment)