Add input validation checks for all functions

[jfy133]

Also improve error message handling for better dev traceback.

[jfy133]

To do: replace current error messages with sidora_error(), started in https://github.com/sidora-tools/sidora.core/tree/error-mess-improvements

[jfy133]

Also replace checks with https://cran.r-project.org/web/packages/checkmate/index.html