docs: add documentation for AddressSanitizer on MSVC

[Nerixyz]

Pull request checklist:

• CHANGELOG.md was updated, if applicable

Description

Initially I wanted to enable ASan in tests as well, but this just won't work (which is really sad), because ASan doesn't like the Settings. At least it can be documented how one enables ASan with MSVC now, since sanitizers-cmake doesn't cover MSVC.

[pajlada]

@Nerixyz Could you try the -DSANITIZE_ADDRESS=On flag to cmake and see if that works as expected (or at least as good as the current recommentation in your documentation?)

[Nerixyz]

@Nerixyz Could you try the -DSANITIZE_ADDRESS=On flag to cmake and see if that works as expected (or at least as good as the current recommentation in your documentation?)

I probably should've made that clearer in my original comment. sanitizers-cmake (the project used to supply the CMake flags for sanitizers) mainly supports GCC and Clang and has the flags to enable the sanitizers hardcoded. MSVC has these Microsofty-style flags in the form of /name=value, so it will fail:

-- Try MSVC AddressSanitizer flag = [-g -fsanitize=address -fno-omit-frame-pointer]
-- Performing Test ASan_FLAG_DETECTED
-- Performing Test ASan_FLAG_DETECTED - Failed
-- Try MSVC AddressSanitizer flag = [-g -fsanitize=address]
-- Performing Test ASan_FLAG_DETECTED
-- Performing Test ASan_FLAG_DETECTED - Failed
-- Try MSVC AddressSanitizer flag = [-g -faddress-sanitizer]
-- Performing Test ASan_FLAG_DETECTED
-- Performing Test ASan_FLAG_DETECTED - Failed
CMake Warning at cmake/sanitizers-cmake/cmake/sanitize-helpers.cmake:150 (message):
  AddressSanitizer is not available for MSVC compiler.  Targets using this
  compiler will be compiled without AddressSanitizer.
Call Stack (most recent call first):
  cmake/sanitizers-cmake/cmake/FindASan.cmake:46 (sanitizer_check_compiler_flags)
  cmake/sanitizers-cmake/cmake/FindSanitizers.cmake:37 (find_package)
  CMakeLists.txt:61 (find_package)


-- Try  AddressSanitizer flag = [-g -fsanitize=address -fno-omit-frame-pointer]
-- Try  AddressSanitizer flag = [-g -fsanitize=address]
-- Try  AddressSanitizer flag = [-g -faddress-sanitizer]
CMake Warning at cmake/sanitizers-cmake/cmake/sanitize-helpers.cmake:150 (message):
  AddressSanitizer is not available for compiler.  Targets using this
  compiler will be compiled without AddressSanitizer.
Call Stack (most recent call first):
  cmake/sanitizers-cmake/cmake/FindASan.cmake:46 (sanitizer_check_compiler_flags)
  cmake/sanitizers-cmake/cmake/FindSanitizers.cmake:37 (find_package)
  CMakeLists.txt:61 (find_package)