Add methods setValuesFromArray and cloneRowFromArray to the TemplateProcessor

[geraldb-nicat]

Hi there!

First of all many thanks for your great work on this package! :)

I thought it would be a very handy addition to the TemplateProcessor-functionality, if it would be possible to set values and clone rows from arrays as data-sources. Since in many cases the variables to be replaced come in array-form (e.g. from a backend), this would allow for more efficient code.

With this pull-request, the following would be possible:

$replacements = [
    'Name' => 'Somebody someone',
    'Street' => 'Coming-Undone-Street 32'
];
$templateProcessor = new TemplateProcessor('Template.docx');
$templateProcessor->setValuesFromArray($replacements);

$rows = [
    [
        'userId' => 1,
        'userFirstName' => 'James',
        'userName' => 'Taylor',
        'userPhone' => '+1 428 889 773'
    ],
    [
        'userId' => 2,
        'userFirstName' => 'Robert',
        'userName' => 'Bell',
        'userPhone' => '+1 428 889 774'
    ],
    [
        'userId' => 3,
        'userFirstName' => 'Michael',
        'userName' => 'Ray',
        'userPhone' => '+1 428 889 775'
    ]
];
$templateProcessor = new TemplateProcessor('Template.docx');
$templateProcessor->cloneRowFromArray('userId', $rows);

I've also added a corresponding sample-file (Sample_37_TemplateCloneRowFromArray.php) and updated the docs.

Feel free to pull this commit, if you deem it useful.

Best wishes
Gerald