build(open62541): DI Node ordering test case for open62541

[keba-uso]

This is a modified DI companion nodeset specification where the parent node with id ns=1;i=15001 is defined after its child nodes:

• ns=1;i=15002
• ns=1;i=15003
• ns=1;i=15004
• ns=1;i=15005
• ns=1;i=15006
• ns=1;i=15007
• ns=1;i=15008
• ns=1;i=15031
• ns=1;i=15032
• ns=1;i=15033

This test XML is used for the ordering test case for open62541: #5511

[keba-uso]

@jpf / @paddor, or anyone else from the maintainers side, I would like to inform you that this PR is ready for review.

[paddor]

Merged. Thank you.