add methods for CompadreDB objects or supress helper text

[wpetry]

The print method for CompadreDB objects prints the tibble contained in the @data slot. This makes sense, but recent changes to the tibble print method include suggestions to view aspects of the data that don't work on CompadreDB objects. Possible solutions:

1. Implement methods for viewing data that simply return the @data slot. This would mean that print(cdbobj, n = 100) would return print(cdbobj@data, n = 100) and so on for an expanded set of data-viewing functions. This seems to already be partially implemented with methods for nrow/ncol, but could be expanded to others likecolnames.
2. Suppress the tibble helper text when a CompadreDB object is printed. Toggling these off would involve setting option(pillar.advice = FALSE) or playing with the experimental pillar::tbl_format_footer function.

reprex

> library(Rcompadre)
> comp <- cdb_fetch("compadre")
This is COMPADRE version 6.22.5.0 (release date May_11_2022)
See user agreement at https://compadre-db.org/Help/UserAgreement
See how to cite at https://compadre-db.org/Help/HowToCite
> comp
A COM(P)ADRE database ('CompadreDB') object with 760 SPECIES and 8851 MATRICES.

# A tibble: 8,851 × 59
   mat        MatrixID Speci…¹ Speci…² Commo…³ Kingdom Phylum Class
   <list>        <int> <chr>   <chr>   <chr>   <chr>   <chr>  <chr>
 1 <CompdrMt>   238259 Abies_… Abies … Balsam… Plantae Pinop… Pino…
 2 <CompdrMt>   238260 Abies_… Abies … Balsam… Plantae Pinop… Pino…
 3 <CompdrMt>   238261 Agave_… Agave … Caribb… Plantae Magno… Lili…
 4 <CompdrMt>   238262 Agave_… Agave … Caribb… Plantae Magno… Lili…
 5 <CompdrMt>   238263 Allium… Allium… NA      Plantae Magno… Lili…
 6 <CompdrMt>   238265 Arauca… Arauca… NA      Plantae Pinop… Pino…
 7 <CompdrMt>   238266 Arauca… Arauca… NA      Plantae Pinop… Pino…
 8 <CompdrMt>   238271 Ascoph… Ascoph… NA      Chroma… Heter… Phae…
 9 <CompdrMt>   238272 Ascoph… Ascoph… NA      Chroma… Heter… Phae…
10 <CompdrMt>   238273 Ascoph… Ascoph… NA      Chroma… Heter… Phae…
# … with 8,841 more rows, 51 more variables: Order <chr>,
#   Family <chr>, Genus <chr>, Species <chr>, Infraspecies <chr>,
#   InfraspeciesType <chr>, OrganismType <chr>, DicotMonoc <chr>,
#   AngioGymno <chr>, Authors <chr>, Journal <chr>,
#   SourceType <chr>, OtherType <chr>, YearPublication <chr>,
#   DOI_ISBN <chr>, AdditionalSource <chr>, StudyDuration <chr>,
#   StudyStart <chr>, StudyEnd <chr>, ProjectionInterval <chr>, …
# ℹ Use `print(n = ...)` to see more rows, and `colnames()` to see all variable names
> print(comp, n = 20)
Error in print.default(comp, n = 20) : invalid 'na.print' specification
> colnames(comp)
NULL
> sessionInfo()
R version 4.2.2 (2022-10-31)
Platform: aarch64-apple-darwin20 (64-bit)
Running under: macOS Monterey 12.6.1

Matrix products: default
LAPACK: /Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods  
[7] base     

other attached packages:
[1] Rcompadre_1.1.0

loaded via a namespace (and not attached):
 [1] lattice_0.20-45 popdemo_1.3-1   fansi_1.0.3    
 [4] utf8_1.2.2      grid_4.2.2      lifecycle_1.0.3
 [7] magrittr_2.0.3  pillar_1.8.1    rlang_1.0.6    
[10] cli_3.4.1       rstudioapi_0.14 Matrix_1.5-3   
[13] vctrs_0.5.1     tools_4.2.2     glue_1.6.2     
[16] compiler_4.2.2  pkgconfig_2.0.3 tibble_3.1.8   
[19] expm_0.999-6  

[wpetry]

I'm having trouble figuring out how to implement a print method for CompadreDB/Rcompadre objects that allows users to pass arguments to print.tbl

[wpetry]

Checklist of base R methods to consider adding under this issue:

• colnames
• print
• dropping mat column when using subset() or [
• cbind and rbind