Add simple_enum(enum support library) (fffaraz#1558)

* Add simple_enum(enum support library)

* remove space

Author: toge

README.md

@@ -977,6 +977,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
 * [Ponder](https://github.com/billyquith/ponder) - A C++11 library for reflection. [MIT]
 * [reflect-cpp](https://github.com/getml/reflect-cpp) - Serialization through reflection, including automatic field name retrieval from structs. [MIT]
 * [RTTR](https://github.com/rttrorg/rttr) - A C++11 library for reflection. [MIT] [website](http://www.rttr.org)
+* [simple_enum](https://github.com/arturbac/simple_enum) - An Fast, Intuitive and Type-Safe C++ Enumeration Support Library. [BSL-1.0] [website](https://arturbac.github.io/simple_enum/)
 * [TSMP](https://github.com/fabian-jung/tsmp) - An intrusion and macro-free C++20 library for static reflection. It uses libclang to extract reflection data from your source code and makes it usable via template specialization. [MIT]
 * [visit_struct](https://github.com/cbeck88/visit_struct) - A miniature library for struct-field reflection in C++. [Boost]
 * [Refureku](https://github.com/jsoysouvanh/Refureku) - A C++17 runtime reflection and code generation library. [MIT]