Add more object types in the DataLoopNode::ConnectionObjectType

[lgu1234]

Issue overview

The NodeInputManager::GetOnlySingleNode function is used to get a node number. One of requirements is to provide DataLoopNode::ConnectionObjectType. The current list of ConnectionObjectType may not cover all possible object types, such as AirLoopHVAC:Splitter and AirLoopHVAC:Mixer. These two objects may be needed in the list, so that the GetOnlySingleNode can be used to get node numbers defined in these two objects.

This issue was raised after review of PR #10042

Details

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• Platform (Operating system, version)
• Version of EnergyPlus (if using an intermediate build, include SHA)
• Unmethours link or helpdesk ticket number

Checklist

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• Defect file added (list location of defect file here)
• Ticket added to Pivotal for defect (development team task)
• Pull request created (the pull request will have additional tasks related to reviewing changes that fix this defect)