… longer used on arm architectures\n- NEON SIMD option only auto selected on arm architectures, defaults to AVX otherwise\n- polar() function now defaults arg2 to 0.0 rather than throwing an error/ignoring overload\n- <StdCompatibility.cpp> auto included for arm & appleclang15\n - One test changed in Complex_test.cpp to prevent overload error. This is a temporary change and the test will be restored once the error related to std::norm is fixed\n - Added Mac Clang15 workflow (debug & release) to ci.yml (yet to test)

- Proper overload for std::norm now selected when norm is called with type param.
- Added NEON SIMD option to drop down menu for CMake GUI
- Restored test I previously changed

- M1 workflow no longer needlessly installs llvm15
- Fixed erroneous formatting error & redundant flag addition
- SIMD: NEON -> APPLE_M1, & added NATIVE
- norm overloads now use = Constructor() rather than = 0 where relevant
- Removed redundant include of <StdCompatibility.hpp> in XAD.hpp
- Windows 14.1 build now uses 2019 runner

- Changed APPLE_M1 flag -march=apple-m1 -> -march=armv8.5-a
- Removed redundant GNU branch in SetupCompiler.cmake
- Added better system resolve (Darwin/Linux) in SetupOptions.cmake
- Changed overload for norm as to enable if type is XAD rather than disable if type is a c++ native type

This fix intends to fix the flag issue for the macoslatest workflow. It may not; in which case this task is relayed it to the next commit.
Next fix will fix baseline coverage issues for Mac (Debug)

- Merged macos-13 & macos-latest into wider matrix build.
- Changed Mac (Debug) to use lcov@1.14 rather than lcov@2.1 to try fix coverage baseline issue.
- Changed Expressions_test 1686 to use tolerance value rather than DOUBLE_EQ.

The lcov version downgrade may not fix coverage baseline, in which case that change will be reverted