opc-ua/open62541: CDP's fork of the open62541 OPC UA stack (https://github.com/open62541/open62541) @ 5ad7df7a17034e4a64e8cbf7884705e5ac2fd311

Stefan Profanter e4fbcbed5d CI: Remove VS2015 from Appveyor builds to save build time		6 lat temu
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build.ps1	e4fbcbed5d CI: Remove VS2015 from Appveyor builds to save build time	6 lat temu
install.ps1	9e4eed375a add vs2017 build to AppVeyor (#2248)	6 lat temu