Prettify retdec output

[caprinux]

Addresses #42 Tested on python versions 2.7.18 and 3.11.

1. Used rstrip instead of strip to prevent stripping indentation
2. Instead of removing all commented lines, I removed only the retdec watermark and the last 5 lines of metainfo

retdec GEF output before:

retdec GEF output after:

[caprinux]

Thanks for the suggestions! Looks better now :)

[Grazfather]

Looks good!

[hugsy]

@caprinux Have you thought about using Pygments for a more granular control over the produced C code ? In gef-extras we don't worry too much about adding external librairies, and this case seems like a perfect candidate for Pygments.

[caprinux]

@hugsy Yes I was actually thinking about it but was worried about the external library part of it. I've never worked with pygments before but I'll go figure it out :)

[hugsy]

No problem at all, that's what the repo is for :) just remember to add it to the requirements.txt file

[Grazfather]

We can squash and merge this since it’s a nice simple improvement and add syntax highlighting later

On Wed, Oct 27, 2021 at 9:17 PM hugsy @.***> wrote:

No problem at all, that's what the repo is for :) just remember to add it to the requirements.txt file

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[caprinux]

Changelog:

• Added syntax highlighting using pygments
• Added gef config retdec.theme to modify syntax highlighting style
• Added pygments to requirements.txt
• Modified docs to update screenshots and add instructions to change retdec syntax theme

Please let me know if there's anything I could improve on :)

I'll leave some images I added to the docs here for viewing  

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