Format: $isRelative(
path)[.dir|.file]
Return: The full path to specified directory|path or $false if it doesn't exist
If the .file prop is specified, then it should only check for direct and relative paths to a file
if the .dir prop is specified, then it should only check for direct and relative paths to a directory
It should try check to see if the
path exists, and return the fullpath as such:
- Is a direct path to a file
- Is a direct path to a directory
- Is a relative path to a file ($mircdirpath)
- Is a relative path to a directory
- If none match, $null should be returned.
