Resolves: tdf#105837 use angle quotation marks (Guillemets) for [de-CH]

Source:
https://en.wikipedia.org/wiki/Quotation_mark#German
https://de.wikipedia.org/wiki/Anf%C3%BChrungszeichen#Schweiz,_Liechtenstein,_Frankreich

Change-Id: I9aa13eb610b39d1443acb0d2993a3e6f3e68a12e

i18npool/source/localedata/data/de_CH.xml

@@ -42,10 +42,10 @@
       <LongDateYearSeparator> </LongDateYearSeparator>
     </Separators>
     <Markers>
-      <QuotationStart>‚</QuotationStart>
-      <QuotationEnd>‘</QuotationEnd>
-      <DoubleQuotationStart>„</DoubleQuotationStart>
-      <DoubleQuotationEnd>“</DoubleQuotationEnd>
+      <QuotationStart>‹</QuotationStart>
+      <QuotationEnd>›</QuotationEnd>
+      <DoubleQuotationStart>«</DoubleQuotationStart>
+      <DoubleQuotationEnd>»</DoubleQuotationEnd>
     </Markers>
     <TimeAM>vorm.</TimeAM>
     <TimePM>nachm.</TimePM>