Add a build script for vector_add

[abelsiqueira]

Description

Add a build script for the tests folder and the vector_add test/example.

Related issues:

• Add build script for vector_add #116

Instructions to review the pull request

• Check that CHANGELOG.md has been updated if necessary

Clone and verify

cd $(mktemp -d --tmpdir cudawrappers-XXXXXX)
git clone https://github.com/nlesc-recruit/cudawrappers .
git checkout <this-branch>
cmake -S . -B build
make -C build
# prepend the following with `srun -N 1 -C TitanX --gres=gpu:1` on DAS
make -C build test
make -C build format # Nothing should change
make -C build lint # linting is broken until we fix the issues (see #92)

[abelsiqueira]

I have started a discussion on #116 which is blocking this.

[fdiblen]

Looks great! I made a few suggestions.

[fdiblen]

Thanks @abelsiqueira 🍪

[abelsiqueira]

Thanks for the review 🥦