Unable to handle symlinks earlier in destination path hierarchy

[ralish]

For example, assume we're symlinking $HOME\.config\pip\pip.conf to $HOME\dotfiles\pip\pip.conf.

If $HOME\.config is a symlink to $HOME\config, then an exception is thrown indicating a directory symlink to an unexpected target was found. As the evaluated source path is further up the directory hierarchy than the target source path it should not indicate a failure. Instead, we should retry the operation on each additional possible level in the source path hierarchy until we've truly exhausted all options, at which point an appropriate exception should be thrown.

[ralish]

Support added in v0.5.2 with global setting ($DotFilesAllowNestedSymlinks) and further improved in v0.5.3 with support for toggling the setting state by cmdlet parameter (-AllowNestedSymlinks).