Trim dependencies

[joeroe]

Do we really need?

Imports:

• rdpack, yes
• checkmate?
• cli, no, remove with Remove deprecated c14_* and cal_* functions #14
• dplyr, maybe? https://www.tidyverse.org/blog/2023/04/performant-packages/
• glue, no, remove with Remove deprecated c14_* and cal_* functions #14
• igraph, yes
• magrittr, no, replace with native pipe
• purrr, yes
• rcarbon, no, remove with Remove deprecated c14_* and cal_* functions #14
• readr, maybe? https://www.tidyverse.org/blog/2023/04/performant-packages/
• relations, yes
• rlang, yes
• sets, yes
• stringr?
• tibble, maybe not after Support constructing stratigraphs from tidy data frames #15
• tidygraph, yes
• tidyr, surely not?
• utils, yes

Suggests:

• bchron, no, remove with Remove deprecated c14_* and cal_* functions #14
• covr, yes
• fs, no
• ggplot2, maybe not after Remove deprecated c14_* and cal_* functions #14
• ggraph, yes
• knitr, yes
• oxcaar, yes
• readxl, surely not?
• rmarkdown, yes
• testthat, yes