Code snippets of the reflection c++ feature

settings:

• compiler: g++-16.1
• cmake: 3.30.9
• standard: 26

references:

• reflection - https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p2996r13.html
• annotations - https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p3394r2.html

examples:

• case_1 - basic reflection new operators, type management, comparison
• case_2 - struct field manipulations
• case_3 - annotation attachment, struct annotation analysis
• case_4 - annotation search at namespace, class manipulations
• case_5 - defining struct types