addLayerDictionaryEntry: Adds an entry to a layer dictionary.
Description
This function adds a new entry to the dictionary that manages a given layer,
and updates all affected tokens in the corpus. Words can have multiple entries.
if (FALSE) {
## Add a pronunciation for the word "robert" to the phonemes layer dictionaryaddLayerDictionaryEntry(labbcat.url, "phonemes", "robert", "'rQ-b@t")
}