Creating additional directories

Also assign some future work with dummy readme files.e

Author: void2012

debugging/readme.md

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+TODO:
+1) Write custom Visual Studio pretty printers for nh3api containers via .natvis files
+https://learn.microsoft.com/en-us/visualstudio/debugger/create-custom-views-of-native-objects?view=vs-2022
+
+2) Implement pretty printers for GDB and LLDB

tests/readme.md

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+TODO:
+Here will be the compatibility tests for the library. We will check for:
+1) Undefined behaviour caused by the implementation issues(fix them!)
+2) Compiler-specific behaviour leading to diverging runtime behaviour(make the library as compiler agnostic as possible!)
+3) Binary compatibility 
+And so on.

visual_studio/readme.md

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+TODO:
+Here will be the ready-to-go project files for each version of visual studio and possible other IDEs