fix: Prevent build time dependency on 'memoise'

trevorld / ggpattern

ggplot geoms with pattern fills

https://trevorldavis.com/R/ggpattern/dev/

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Closed trevorld closed 3 years ago

trevorld commented 3 years ago

In order to prevent build time dependency on 'memoise' we define img_read_memoised() at build time and then replace it at load time with a memoised version within .onLoad()
This is recommended in http://memoise.r-lib.org/reference/memoise.html#details
See https://github.com/r-lib/memoise/issues/76 for further details
On some platforms doing this also prevents an R CMD check NOTE

trevorld commented 3 years ago

img_read_memoised() should eventually be removed by #42