In preparation for an upcoming commit where litcli commands for the
Status server are added, the `getClientConn` method is updated with a
`noMac` parameter. If true, them the connection will be made without a
macaroon.
With this commit, a user can now specify a regex when specifying custom
permissions for an LNC session. This regex will be used to select
permissions for URIs that match the regex.
Remove the use of the UI password from litcl. Use the litd macaroon
instead. Note, this means that in stateless mode, litcli won't have a
macaroon to use on disk and one must be baked specifically.
The default expiry of one hour was way too short for anything practical
and we increase it to 90 days which is almost three months.
The user can still override this value manually by specifying the flag.
Add flag to litcli so that we can create sessions of the admin or
readonly macaroon type through the cli.
This commit also results in it no longer being possible to create a
UIPassword session through the CLI.
