Include translatable tokens in dataset

[SethFalco]

In commands, tokens can be translated.

We can index and pull out the tokens from each command string, and include those mappings in the output as well.

Example

- Add a new task to the work list:

`todo new {{thing_to_do}} --list {{work}}`

- Aggiungere un nuovo task alla lista delle cose da fare per lavoro:

`todo new {{cose_da_fare}} --list {{lavoro}}`

• thing_to_do → cose_da_fare
• work → lavoro