Samples for All Invoice Operations including QR Code

- Invoice search method is static now
- Shipping Info has proper Phone Params
- Small Changes to Image Class
- Updated Sample Docs

sample/doc/invoice/ListInvoice.html

@@ -8,7 +8,7 @@ all invoice from history.</p></div></div><div class="code"><div class="wrapper">
 <p>Retrieve the Invoice History object by calling the
 static <code>get_all</code> method on the Invoice class.
 Refer the method doc for valid values for keys
-(See bootstrap.php for more on <code>ApiContext</code>)</p></div></div><div class="code"><div class="wrapper">    <span class="hljs-variable">$invoices</span> = Invoice::get_all(<span class="hljs-variable">$apiContext</span>);
+(See bootstrap.php for more on <code>ApiContext</code>)</p></div></div><div class="code"><div class="wrapper">    <span class="hljs-variable">$invoices</span> = Invoice::getAll(<span class="hljs-keyword">array</span>(<span class="hljs-string">'page'</span> =&gt; <span class="hljs-number">0</span>, <span class="hljs-string">'page_size'</span> =&gt; <span class="hljs-number">4</span>, <span class="hljs-string">'total_count_required'</span> =&gt; <span class="hljs-string">"true"</span>), <span class="hljs-variable">$apiContext</span>);
 } <span class="hljs-keyword">catch</span> (<span class="hljs-keyword">Exception</span> <span class="hljs-variable">$ex</span>) {
     ResultPrinter::printError(<span class="hljs-string">"Lookup Invoice History"</span>, <span class="hljs-string">"Invoice"</span>, <span class="hljs-keyword">null</span>, <span class="hljs-keyword">null</span>, <span class="hljs-variable">$ex</span>);
     <span class="hljs-keyword">exit</span>(<span class="hljs-number">1</span>);