added support for presentation type & convert other types to Regular

Author: Prokopiev

Unistorage/Unistorage.php

@@ -130,10 +130,15 @@ public function getFile($resourceUri)
                 'video' => 'VideoFile',
                 'audio' => 'AudioFile',
                 'doc' => 'DocFile',
+                'presentation' => 'RegularFile',
                 'unknown' => 'RegularFile',
             );
 
-            $className = $unistorageTypeToClassName[$answer['data']['unistorage_type']];
+            if(isset($unistorageTypeToClassName[$answer['data']['unistorage_type']])) {
+                $className = $unistorageTypeToClassName[$answer['data']['unistorage_type']];
+            } else {
+                $className = 'RegularFile';
+            }
 
             $className = $this->getFilesNamespace() . $className;
             $properties = $this->convertToFieldNames($answer['data']);