Dynamic list of unsupported geoms

Here's a list of official ggplot2 geoms that we don't currently support. For a list of 3rd party geoms, see #566

library(plotly)
  # obtain ggplot2's geoms
gg <- ls(asNamespace("ggplot2")) 
geoms <- gg[grepl("^Geom", gg)]
# plotly geoms
x <- sub("to_basic\\.", "", as.character(methods(to_basic)))
y <- sub("geom2trace\\.", "", as.character(methods(geom2trace)))
# non official mechanism for layout-specific geoms yet
pgeoms <- c(x, y, "GeomRasterAnn")
setdiff(geoms, pgeoms)

"GeomCurve"     "GeomCustomAnn" "GeomLabel"     "GeomLogticks"

packageVersion("plotly")
[1]  ‘4.5.6.9000’

重新執行 issue 中的 R 程式碼片段，並檢查其中提到的 to_basic 和 geom2trace 方法清單。與維護者確認目標是支援列出的四個 geom，還是動態回報不受支援的 geom。完成條件應是行為已達成共識，且列出的 geom 依預期受到處理或回報。