Ported multiple armral feature sets to use HWY

This MR adds multiple Highway ported implementations for armral function sets. The merge includes the following changes:

1. Scrambling & Sequence Generator
2. Modulation & Demodulation
3. LDPC
4. Convolutional Encoder & decoder
5. Trubo
6. Applied all change requested in !27 (merged) to the code.

Checklist

• [] Contribution meets RAL's licence terms
• [] New functions adhere to RAL's naming scheme
• [] Contribution conforms to RAL's directory structure
• [] Documentation updated
• [] "Unreleased" section of the Changelog updated
• [] clang-format and clang-tidy run and changes included (C/C++ code)
• [] flake8 run and changes included (Python code)
• [] cmake-format run and changes included (CMake code)
• [] Tests added or updated
• [] Tests pass when run with AddressSanitizer
• [] Benchmarks added or updated

For any items that are not checked, please provide details.