validate_online: Append a data.frame with online attributes
Description
internal function to append a data.frame with an online related sources.
The input data.frame has a specific structure, such contain c("Package", version_name_new) columns.
Usage
validate_online(
result,
version_name_new = "Version.expected",
lifeduration,
checkred,
repos,
lib.loc = .libPaths()
)