CXX 3.3.3

CXX 3.3.3

• Minor changes to the win64 flags.
• Update year in license.
• Make debug builds less strict.
• Format the code with autopep8.
• Let the debug builds use -O0 instead of -Og.
• Add a target for debug builds without the address sanitizer.
• Update documentation.
• Update the Bisqwit and Raylib example code.
• Use C++20 instead of C++2b or C++2a (also postpone moving to C++23, just yet).