git-pull

Pulls updates from a remote using Authentication

####Git

$ git pull
```
#### LibGit2Sharp
```csharp
using (var repo = new Repository("path/to/your/repo"))
{
    LibGit2Sharp.PullOptions options = new LibGit2Sharp.PullOptions();
    options.FetchOptions = new FetchOptions();
    options.FetchOptions.CredentialsProvider = new CredentialsHandler(
        (url, usernameFromUrl, types) =>
            new UsernamePasswordCredentials()
            {
                Username = USERNAME,
                Password = PASSWORD
            });
    repo.Network.Pull(new LibGit2Sharp.Signature(USERNAME, EMAIL, new DateTimeOffset(DateTime.Now)), options)
}
```