Output notice about Prisma1->Prisma2 upgrade documentation and tool

[janpio]

After Introspection we want to output some text (TBD) that links to our Prisma1->Prisma2 upgrade documentation. This should be triggered by #2424 (and only be shown on Prisma1 and Prisma11).

• Define text that should be shown to users
• Define where the text will be shown to users
• Combine both for implementation

[timsuchanek]

Define where the text will be shown to users

We can show this at the end of our introspection command.

[Jolg42]

Maybe at the end

This database was created from Prisma 1.
If you wish yo upgrade to Prisma 2 you can read the documentation here.

With link on read the documentation here

[nikolasburk]

I'd suggest the following output:

The database you introspected seems to belong to a Prisma 1 project.
If you want to upgrade to Prisma 2.0, please visit the docs here: 
https://pris.ly/upgrading-to-prisma2

[janpio]

(We might iterate on the details of the text a bit more tomorrow, but this can already be implemented so we can start testing it.)

[Jolg42]

So I didn't remove the "(NonPrisma)" output yet, I guess I can now? (The message will only show for Prisma1 or Prisma11 values but my quick test was to fake it 😄)

This is the new look with latest alpha 2.0.0-alpha.1252:

And --print

[Jolg42]

New output tested on Prisma 1 db

--print

[Jolg42]

[Jolg42]

It's in 2.0.0-alpha.1255