[feature] editor.suggest returns likelihood for each suggestions

[John (Juan) Lema]

Currently editor.suggest returns words or tuples ordered by likelihood.
It would be great to be able to return the actual likelihood to compare likelihoods between suggestions. This could be done by passing the meta=True argument

Sample usage:

sug = editor.suggest('this is a tiny {mask} dog', meta=True)
print(sug.data[0], sug.meta[0])
print(sug.data[0], sug.meta[0])
'cute', 0.98
'yappy', 0.86

[Marco Tulio Correia Ribeiro]

Implemented in 46b7263, but with parameter return_score and different return format (returns tuple if True)