New release 0.31.0

Breaking changes

• link: InfoIpTunnel::CollectMetadata(bool) -> CollectMetadata. (c91e440)
• link: InfoVxlan::Df changed u8 to VxlanDf enum. (2fac888)

New features

• link vxlan: add support for IFLA_VXLAN_LABEL_POLICY. (e7ee5bc)
• link vxlan: add support of IFLA_VXLAN_RESERVED_BITS. (8d60902)
• link: add Display + FromStr impls for bridge enums. (7c7c6a9)
• link: bond: add FromStr/Display for BondAllPortActive. (b97280b)
• link: bond: add FromStr/Display for BondLacpRate. (afd072d)
• link: bond: align FromStr/Display strings with iproute2. (35d39ab)
• link: bond: implement FromStr for bond enums. (192cb0c)
• neigh: impl FromStr for NeighbourState. (b3abdf8)
• link: add From<&str> For InfoKind. (4e952be)
• link: Implement Display for VxlanDf. (6dd74c9)
• link vxlan: Add IFLA_VXLAN_MC_ROUTE support and test. (aad6df2)
• addr: impl Display AddressScope, AddressProtocol, and AddressFamily. (492033a)
• link: Adds support for 2 bond link info fields. (9bc8ba0)
• link: Add initial support of IFLA_DPLL_PIN. (c514c3a)

Bug fixes

• N/A