implement basic vectorized filtering for ARM platforms

AS of 6.2.2 Columnstore(MCS) supports vectorization on x86_64 platforms only.
The goal of the project is to implement a low-level filtering for ARM platforms using 128bit ARM NEON extention(SVE is optional).
Low-level filtering algorithm is defined here. The filtering algorithm for x86_64 uses templated class methods that are defined here (SimdProcessor class)

Here are the phases for the project:

1. get familiar with the code base, compilation and bootstrap process [1]. Fix the bootstrap script if needed.
2. get familiar with vector extensions(NEON, SVE) for ARM platforms
3. implement vectorization on ARM

Plz get in touch either here or in MariaDB Zulip chat

1. Here is the automated bootstrap script.