Feature detection

use RoundlyConsulting\Git\Enums\Feature;
use RoundlyConsulting\Git\Enums\ProviderName;

$github = Git::github();

if ($github->supports(Feature::ListCommits)) {
    $github->repo('acme/api')->commits()->get();
}

$github->supportsAll(Feature::CreateRelease, Feature::CreateTag); // bool
$github->supportsAny(Feature::Languages);                         // bool
$github->features();                                              // list<Feature> this provider supports
$github->capabilities();                                          // ['repositories' => true, ...]
$github->featureMatrix();                                         // list<FeatureInfo> with ->supported
Git::capabilities(ProviderName::Bitbucket);                       // without authenticating
Feature::MergePullRequest->description();                         // "Merge a pull/merge request."