Add <state> to <infrastructure> element

Description

railML provides a element already for several infrastructure elements. However, it is currently not possible to tag the whole tree with a state.

Background

The element defines whether the tagged infrastructure element is available for operation purposes or not.

Links

• Forum discussion
• Torben Brand, 31.08.2017: [https://www.railml.org/forum/index.php?t=msg&th=531&goto=1632&#msg_1632]
• Trac ticket
• Wiki documentation
• IS:State: [https://wiki.railml.org/index.php?title=IS:state]

Proposed solution in railML 2.4

The existing element shall be made available for the element.

Example:

<infrastructure id="is01">
  <states>
    <state disabled="true"/>
  </states>
  ...
</infrastructure>