update dyno restart and stop with fir support

[eablack]

GUS WI

Description

This reworks ps:stop and ps:restart to work with new fir-compatible APIs. Aligning with heroku logs, we will now require explicit flags for dyno name, --dyno, and dyno type, --type. We'll continue supporting passing DYNO as an argument as a deprecated arg.

Testing

With a fir app,

1. Pull down this branch and yarn build
2. Find the name of a dyno and its type by running heroku ps -a APP_NAME
3. ./bin/run ps stop --dyno DYNO_NAME
4. ./bin/run ps restart --dyno DYNO_NAME
5. ./bin/run ps stop --type DYNO_TYPE
6. ./bin/run ps restart --type DYNO_TYPE
7. Do 3-6 with a cedar app

[k80bowman]

Works well!