Suppress NOTE 'All declared Imports should be used'

[maurolepore]

Solution:
https://community.rstudio.com/t/how-should-a-meta-package-handle-this-note-all-declared-imports-should-be-used/23400/3

NOTE

N  checking dependencies in R code (927ms)
   Namespaces in Imports field not imported from:
     ‘fgeo.analyze’ ‘fgeo.plot’ ‘fgeo.tool’ ‘fgeo.x’
     All declared Imports should be used.