changelog: Add entry about EVMC C++ user defined literals
Support for moving `evmc::vm` objects in C++ API.
- Added: [[#357](https://github.com/ethereum/evmc/pull/357)]
The basic types `address` and `bytes32` have received their C++ wrappers
- to assure they are always initialized. They also have convenient operator
- overloadings for comparison and usage as keys in standard containers.
+ to assure they are always initialized.
+ They also have convenient overloaded operators for comparison
+ and usage as keys in standard containers.
+- Added: [[#359](https://github.com/ethereum/evmc/pull/359)]
+ The C++ EVMC basic types `address` and `bytes32` have user defined literals.
+ ```cpp
+ auto a = 0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359_addr;
+ auto b = 0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3_b32;
+ ```
- Changed: [[#293](https://github.com/ethereum/evmc/pull/293)]
In C++ API `evmc::result::raw()` renamed to `evmc::result::release_raw()`.
- Changed: [[#311](https://github.com/ethereum/evmc/pull/311)]
