[Console] Rename Command::setProcessName to Command::setProcessTitle

To be more consistant with the underlying system.

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no (because the 2.5 is not released yet)
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | none
| License       | MIT
| Doc PR        | none