`gcv_get_response()` returns incorrect columns when multiple images are sent in for "IMAGE_PROPERTIES"

[tkoncz]

library(googleCloudVisionR)

gcv_get_response(
    imagePaths = c("inst/extdata/bali_small.jpeg", "inst/extdata/essex.jpg"),
    feature = "IMAGE_PROPERTIES",
    maxNumResults = 1
)

#>                      image_path red green blue     score pixel_fraction color.red.1 color.green.1 color.blue.1   score.1 pixelFraction.1
#> 1: inst/extdata/bali_small.jpeg 241   178  132 0.1905586     0.01451833         198           195          198 0.8104908       0.4618453
#> 2:       inst/extdata/essex.jpg 241   178  132 0.1905586     0.01451833         198           195          198 0.8104908       0.4618453