* feat(p2p): add anchor file for discovery state
* move rustdoc and improve error messages
Co-authored-by: Bjerg <onbjerg@users.noreply.github.com>
* add temp file tests and log drop error
* fix error due to lack of read option
* fix empty and nonexistent file error
* remove redundant new
* replace println with tracing
* show underlying error in custom error message
* chore: cargo fmt
* change AsRef<Path> to &Path
* remove ineffective dedups
* chore: cargo fmt
* switch out Vec<Enr<K>> for HashSet<Enr<K>>
* cargo fmt
* use tempdir instead of of std::env::temp_dir
* refactor anchor to contain &Path instead of File
* change new_from_file to explicitly include logic for opening existing
files, rather than calling out to from_toml
* remove from_toml because new_from_file handles existing files
properly with only a path. It is not possible to obtain a Path from a
File anyways, its only purpose was to accept a File type
* use PathBuf instead of Path
Co-authored-by: Bjerg <onbjerg@users.noreply.github.com>