Clean up code of `tuneParams()` gadget

[gustavdelius]

The tuneParams() shiny gadget has evolved over the past year and is now ripe for a code cleanup, so that it can be maintained and extended by others.

[gustavdelius]

There should be new arguments

• include_inputs with default c("Abundance", "Predation", "Reproduction", "Fishing", "Resources", "Plankton", "Metabolism", "Mortality", "Interaction", "File") and exclude_inputs with default NULL to determine which parameters can be set in the app.

• include_outputs with default c("Spectra", "Abundance", "Growth", "Repro", "Catch", "Rates", "Diet", "Death", "Plankton", "Steady") and exclude_outputs with default c("Prey") to determine which tabs with plots to include in the app.

[gustavdelius]

This work is no taking place in mizerExperimental, https://github.com/sizespectrum/mizerExperimental