Static re_data_loader::loader_external::EXTERNAL_LOADER_PATHS

pub static EXTERNAL_LOADER_PATHS: Lazy<Vec<PathBuf>>

Keeps track of the paths all external executable crate::DataLoaders.

Lazy initialized the first time a file is opened by running a full scan of the $PATH.

External loaders are not registered on a per-extension basis: we want users to be able to filter data on a much more fine-grained basis that just file extensions (e.g. checking the file itself for magic bytes).