FR: Support from parameter command and name parameters

It would be useful if we can define variable parameters like

.parameter set :user_id 'A_NAME'

and then use it in a select or favorite query

select * from user where id=:user_id;

or

.read test/test_user.sql

Start by tracing how litecli handles dot commands, query execution, favorite queries, and the example .read test/test_user.sql flow. Determine where named parameters and the .parameter set command would fit, then verify that a stored value is substituted when running a select or favorite query.

Rédigé par le modèle d'indexation à partir du texte de l'issue.