Retrieves information about cached mappings between relative file paths and corresponding absolute file paths.
Array of meta data about the resolve file path cache or false on failure
The array returned by this function contains the following elements:
total_file_count - total number of file path mappings stored in the cache
rplist_entries - an array that contains the information about all the cached file paths:
resolve_path - path to a file
subkey_data - corresponding absolute path to a file