[NFR]: Add a method that describes an exception to HTML format

[TimurFlush]

Hello!

The Phalcon\Debug class now generates an HTML view with every new exception.

My idea is to add public method renderHtml(\Throwable $ex): string.
That is, the class work will not change, but developers can use this method in their solutions to generate HTML representation as a string.
For example, the developer does not want to use the standard mechanism of catching exceptions which provides Phalcon, and wants just to receive HTML representation from this mechanism as a string.

Thanks.
I'm waiting for feedback.

[TimurFlush]

I created a new method renderHtml() in the Phalcon\Debug class.
I just tested it, and it's working fine.
Can I create a PR?

@niden Please see

[Jurigag]

Feel free to always create PR if you want, you don't have to ask for permission @TimurFlush :)

[niden]

Thank you @TimurFlush

Resolved in #14812

[TimurFlush]

Thank you @TimurFlush

Resolved in #14812

And you (: