XTCE13 — Mistake in AlarmType refactoring

It appears that when several base alarm types were made (BooleanAlarmType, BinaryAlarmType, EnumerationAlarmType, NumericAlarmType, etc) that the BinaryAlarmType did not get completely applied. This only affects the class hierarchy when using a code generator and does not affect user documents.

This "BinaryContextAlarmType" should have called out xtce:BinaryAlarmType as the extension instead of xtce:AlarmType:

<complexType name="BinaryContextAlarmType">
<complexContent>
<extension base="xtce:AlarmType">
<sequence>
<element name="ContextMatch" type="xtce:ContextMatchType"/>
</sequence>
</extension>
</complexContent>
</complexType>