Tools: add a XSL to create the Windows/Olson mapping

Since Windows uses its own names for timezones, the Unicode corsotium provides
the canonical mapping for the timezones.  Use the Unicode CLDR to generate the
mapping plist requires transformation, which this XSLT provides.

Author: compnerd

CoreFoundation/Tools/WindowsOlsonDatabase.xsl

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  This XSL transforms the Windows Timezone list from the Unicode CLDR to a plist
+  which is consumable by CoreFoundation.  You need to fetch the lastest mapping
+  from the Unicode consortium from:
+    https://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml
+  The XSL can be applied to this data via the `xsltproc` command.
+  Running
+    `xsltproc &dash;&dash;noverify WindowsOlsonDatabase.xsl windowsZones.xml`
+  will generate the mapping plist.
+-->
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+  <xsl:output encoding="utf-8" indent="yes" />
+
+  <xsl:template match="/">
+    <xsl:text disable-output-escaping="yes">&lt;!DOCTYPE plist SYSTEM "file:///localhost/System/Library/DTDs/PropertyList.dtd"&gt;
+</xsl:text>
+<plist version="1.0">
+  <dict>
+    <xsl:for-each select="supplementalData/windowsZones/mapTimezones/mapZone[@territory='001']">
+    <key><xsl:value-of select="@type" /></key>
+    <string><xsl:value-of select="@other" /></string>
+    </xsl:for-each>
+  </dict>
+</plist>
+  </xsl:template>
+</xsl:stylesheet>