pack set-default-stack allows a user to set the default stack in the config.toml

[ssisil]

WHEN I run pack set-default-stack my.custom.stack.id
THEN the stack ID passed in will be set as the default in the config.toml file
AND the following message will be displayed to the user

my.custom.stack.id is now the default stack

Notes

• If the stack ID passed in does not exist then return the following message <stack ID> does not exist. Please pass in a valid stack ID.