Build and Test on Linux/ARM64

## Description

For aarch64 platform, I have built "Snappy" from source.

## Steps

Following [STEPS](https://github.com/google/snappy#building) were used for the building and installation:

~~~

$ wget https://github.com/google/snappy/archive/refs/tags/1.1.7.tar.gz && tar -zxvf 1.1.7.tar.gz
$ cd snappy-1.1.7/
$ mkdir build && cd build/
$ cmake ../
$ make

~~~

## Outcome

To run tests, execute the binary in the source/root dir. :

~~~
$ ./build/snappy_unittest

~~~

All tests passed.

All this information is also added to Software Ecosystem Dashboard for Arm (https://www.arm.com/developer-hub/ecosystem-dashboard/).