Add BiocStyle to Suggests

[HenrikBengtsson]

Hi. I'm running reverse dependency checks on parallelly, I noticed that your package lacks Suggests: BiocStyle, cf. https://github.com/HenrikBengtsson/parallelly/blob/develop/revdep/problems.md#biscuiteer. Without, it you get:

*** checking re-building of vignette outputs ... WARNING

Error(s) in re-building vignettes:
  ...
--- re-building ‘biscuiteer.Rmd’ using rmarkdown
Error: processing vignette 'biscuiteer.Rmd' failed with diagnostics:
there is no package called ‘BiocStyle’
--- failed re-building ‘biscuiteer.Rmd’

SUMMARY: processing the following file failed:
  ‘biscuiteer.Rmd’

Error: Vignette re-building failed.
Execution halted

[jamorrison]

Thanks @HenrikBengtsson for bringing this to our attention. BiocStyle has been added to Suggests and pushed to Bioconductor devel.

[HenrikBengtsson]

Thanks. If not too much work, do you mind patching also Bioc release?

[HenrikBengtsson]

Just ran into this problem again while revdep check parallelly + future; do you mind push this fix also the the Bioc release branch?