PAMrSettings: Constructor for PAMrSettings Object
In TaikiSan21/PAMr: Load and Process Passive Acoustic Data

Create a PAMrSettings object. Any values that are not supplied will be asked for interactively.

1	PAMrSettings(db = NULL, binaries = NULL, calibration = NULL)

`db`	the full path to a PamGuard database file
`binaries`	a list with items "folder" containing the directory of the PamGuard binary files, and "list" containing the full path to each individual binary file.
`calibration`	a named list of calibration functions to apply while applying functions from the "functions" slot. Should named by the PamGuard module, same as the "functions"