Use 'OtherEnumerationValue' for OCPs

There are some enumeration lists, that could be extended by users without modifying schemas.

In order to use it, the schema should provide a union of string-restriction with enumeration values and the generic tOtherEnumerationValue.

Especially ocp enumeration lists need this extension, because they aren't completely defined with all possible nuances.

• tOcpStatus
• tOcpManMode
• tOcpOperationalType
• tOcpTrafficType
• tOcpNameType

Following types are also candidates for user-defined extension.

• tTrackType
• tLineType
• tBorderType
• tTunnelType

XML example would be:

<rail:propOperational operationalType="other:measurePoint"/>