tocstyle deprecated, update for using tocbasic

[bernardohenz]

tocstyle has been withdrawn from the koma-script bundle in july 2020, and is being considered as obsolete.
I believe that tocbasic should be used instead.

[fcicc]

I suggest to include tocstyle.sty in inputs folder while this issue is not addressed. I shall open a PR for that.

[schnorr]

Hi @bernardohenz , thanks for that comment. Do you think we can replace tocstyle by tocbasic straightway?

[bernardohenz]

I was able to replace tocstyleby tocbasic, but then all the following commands (\settocfeature) stopped to work.

By removing such commands, I was able to compile, but the layout was changed a bit (take a look at the picture)

If the new layout is acceptable, I can open a PR for this.

[fcicc]

I think that these differences are not acceptable according to ABNT rules. But I think that these differences can be worked to fit the ABNT style. If this is actually possible, your solution is more adequate than mine :)

[schnorr]

While we keep looking for an alternative to tocstyle (it seems tocbasic is not fully okay yet), I've merged PR #65 to include a version of the tocstyle.sty locally. I'll keep this issue open to keep on discussing on how could we replace tocstyle.sty and still keep following the established rules for the TOC.

[FranciscoKnebel]

Tex Live 2021 (default in Overleaf, even if cloning old documents) removed the deprecated tocstyle package.

For Overleaf users, setting to version 2020 fixes the import error.

[yusefmhg]

Using tocbasic is possible to define the entries style:

The only issue is you can't use \MakeUppercase (which is itself a bad practice). I used Small Caps (\scshape) in the example. I think this is a better option than \MakeUppercase, but I don't know if it is acceptable by ABNT (frankly infuriating) standartd.

If this example is acceptable, I'll submit a push request. Otherwise, I'll find an alternative for \MakeUppercase.