Charles: Add admin auth headers

gistfile1.xml

<?xml version='1.0' encoding='UTF-8' ?>
<?charles serialisation-version='2.0' ?>
<rewriteSet-array>
  <rewriteSet>
    <active>true</active>
    <name>Add admin auth headers</name>
    <hosts>
      <locationPatterns>
        <locationMatch>
          <location>
            <host>localhost</host>
            <port>8080</port>
          </location>
          <enabled>true</enabled>
        </locationMatch>
      </locationPatterns>
    </hosts>
    <rules>
      <rewriteRule>
        <active>true</active>
        <ruleType>1</ruleType>
        <matchHeader></matchHeader>
        <matchValue></matchValue>
        <matchHeaderRegex>false</matchHeaderRegex>
        <matchValueRegex>false</matchValueRegex>
        <matchRequest>true</matchRequest>
        <matchResponse>false</matchResponse>
        <newHeader>My-Username-Header</newHeader>
        <newValue>admin</newValue>
        <newHeaderRegex>false</newHeaderRegex>
        <newValueRegex>false</newValueRegex>
        <matchWholeValue>false</matchWholeValue>
        <replaceType>2</replaceType>
      </rewriteRule>
      <rewriteRule>
        <active>true</active>
        <ruleType>1</ruleType>
        <matchHeader></matchHeader>
        <matchValue></matchValue>
        <matchHeaderRegex>false</matchHeaderRegex>
        <matchValueRegex>false</matchValueRegex>
        <matchRequest>true</matchRequest>
        <matchResponse>false</matchResponse>
        <newHeader>My-Roles-Header</newHeader>
        <newValue>orbeon-user,admin</newValue>
        <newHeaderRegex>false</newHeaderRegex>
        <newValueRegex>false</newValueRegex>
        <matchWholeValue>false</matchWholeValue>
        <replaceType>2</replaceType>
      </rewriteRule>
      <rewriteRule>
        <active>true</active>
        <ruleType>1</ruleType>
        <matchHeader></matchHeader>
        <matchValue></matchValue>
        <matchHeaderRegex>false</matchHeaderRegex>
        <matchValueRegex>false</matchValueRegex>
        <matchRequest>true</matchRequest>
        <matchResponse>false</matchResponse>
        <newHeader>My-Group-Header</newHeader>
        <newValue>orbeon-user</newValue>
        <newHeaderRegex>false</newHeaderRegex>
        <newValueRegex>false</newValueRegex>
        <matchWholeValue>false</matchWholeValue>
        <replaceType>2</replaceType>
      </rewriteRule>
    </rules>
  </rewriteSet>
</rewriteSet-array>