v0.6.0-pre.3

Added

• Add logical OR combinator for ua::BrowseResultMask and ua::NodeClassMask.
• Add const ua::NodeClassMask variants to initialize masks.
• Add serde serialization for ua::Array and ua::Variant with array value.
• Add constructors ua::Variant::scalar() and ua::Variant::array().
• Add constructor ua::DataValue::new().
• Add helper method ua::Array::into_array() for conversion into native Rust array.

Changed

• Breaking: Remove associated functions for enum data types deprecated in 0.5.0, e.g. ua::AttributedId::value(). Use uppercase constants ua::AttributedId::VALUE instead.
• Breaking: Split Server::new() and ServerBuilder::build() result type into Server and ServerRunner to allow interacting with server's data tree while server is running.
• Upgrade to open62541 version 1.4.0.
• Reintroduce internal mutex in AsyncClient to work around issue in open62541 version 1.4.

Fixed

• Avoid memory leak when calling ua::Variant::with_scalar() multiple times on the same value.