Fixed XMP sidecars to conform with exiftool format, #349, #350

tests/sidecars/8SOE9s0XQVGsuq4ONohTng.xmp

@@ -0,0 +1,51 @@
+<!-- Created with osxphotos https://github.com/RhetTbull/osxphotos -->
+<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="XMP Core 5.4.0">
+    <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+        <rdf:Description rdf:about="" 
+            xmlns:dc="http://purl.org/dc/elements/1.1/" 
+            xmlns:photoshop="http://ns.adobe.com/photoshop/1.0/">
+        <photoshop:SidecarForExtension>jpg</photoshop:SidecarForExtension>
+        <dc:description>
+        <rdf:Alt>
+            <rdf:li xml:lang='x-default'>Girls with pumpkins</rdf:li>
+        </rdf:Alt>
+        </dc:description>
+        <dc:title>
+         <rdf:Alt>
+          <rdf:li xml:lang='x-default'>Can we carry this?</rdf:li>
+         </rdf:Alt>
+        </dc:title>
+        <dc:subject>
+         <rdf:Bag>
+            <rdf:li>Kids</rdf:li>
+         </rdf:Bag>
+        </dc:subject>
+        <photoshop:DateCreated>2018-09-28T15:35:49.063000-04:00</photoshop:DateCreated>
+        </rdf:Description>
+        <rdf:Description rdf:about=""  
+            xmlns:Iptc4xmpExt='http://iptc.org/std/Iptc4xmpExt/2008-02-29/'>
+        <Iptc4xmpExt:PersonInImage>
+            <rdf:Bag>
+                    <rdf:li>Katie</rdf:li>
+                    <rdf:li>Suzy</rdf:li>
+            </rdf:Bag>
+        </Iptc4xmpExt:PersonInImage>
+        </rdf:Description>
+        <rdf:Description rdf:about="" 
+            xmlns:digiKam='http://www.digikam.org/ns/1.0/'>
+        <digiKam:TagsList>
+            <rdf:Seq>
+                <rdf:li>Kids</rdf:li>
+            </rdf:Seq>
+        </digiKam:TagsList>
+        </rdf:Description>
+        <rdf:Description rdf:about="" 
+            xmlns:xmp='http://ns.adobe.com/xap/1.0/'>
+        <xmp:CreateDate>2018-09-28T15:35:49</xmp:CreateDate>
+        <xmp:ModifyDate>2018-09-28T15:35:49</xmp:ModifyDate>
+        </rdf:Description>
+        <rdf:Description rdf:about=""
+            xmlns:exif='http://ns.adobe.com/exif/1.0/'>
+        </rdf:Description>
+   </rdf:RDF>
+</x:xmpmeta>