Add parameters support to TelegramException

[Lukasss93]

$bot->onApiError('.*Too Many Requests.*', function(Nutgram $bot, TelegramException $e){
    $e->getParameters(); // ['retry_after' => 14]
    $e->getParameter('retry_after'); // 14
    $e->hasParameter('retry_after'); // true
});

[codeclimate]

Code Climate has analyzed commit f3f680b and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (60% is the threshold).

This pull request will bring the total coverage in the repository to 93.8%.

View more on Code Climate.

[Lukasss93]

there is a BC, I'll fix it later.