[6.x] Add purge console command

[crynobone]

Purging when folder doesn't exist.

Signed-off-by: Mior Muhammad Zaki [email protected]

[taylorotwell]

So we don't want to purge everytime you run dusk anymore?

[crynobone]

@taylorotwell on dusk, it will silently call dusk:purge

[driesvints]

I realized that technically there are breaking changes here since the protected methods in the Dusk command are now gone. We'll need to be aware of that.

[crynobone]

@driesvints ahhh yeah, we could revert DuskCommand changes and only add the new command for 6.x

[taylorotwell]

@crynobone sounds good

[crynobone]

@driesvints @taylorotwell done.