Add way to create alias within option value. Use it for migrate

[bscheshirwork]

yiisoft/yii2#16789

Q	A
Is bugfix?	no
New feature?	yes
Breaks BC?	-
Tests pass?	yes/no
Fixed issues	#3 #4

[samdark]

While it's good to have a shortcut for it, I'm not sure it's the best possible choice of letter.

[bscheshirwork]

-y for yes

[samdark]

Yes, I understand that. Want @cebe, @hiqsol and @SilverFire opinions on that though.

[cebe]

having a short option that behaves differently from the long option can result in very confusing interface and is also not easy to explain in docs. I would prefer to keep it more intuitive to use.

e.g.

./yii migrate --interactive
./yii migrate --non-interactive

The thing with boolean flags is a bit complicated. While having a boolean flag that is false when not specified and true when specified is straight forward, with --interactive we have one that is default true, so setting it to false requires the weird concept of --interactive=0. It might be better to drop interactive and replace it with something that disables interactiveness when specified, so that it is default false.

[bscheshirwork]

intuitive to use.

Answer "yes" for question "apply something?"

Like to shell apt update -y

So... In this case

            'y' => ['-non-interactive', 1],

[samdark]

@bscheshirwork Good change overall. Going to have it. Would you please do #6 (comment) as well?