Support for last N migrations for the database

[cmpickle]

When using the status command of goose it can take a long time to read and print out all of the years worth of migrations to the terminal. Often times when I run the status command all I care about is looking at the last 10 or so migrations to see if the database that I am currently pointed at has had the latest migrations applied.

I would love to see support added for a flag along the lines of goose mysql "[DB_CONNECTION_STRING]" status -n 10 That would allow me to have goose retrieve the last 10 migrations and if they have been applied as status typically does.