feat: add partial clone argument in vcs import

[Owen-Liuyuxuan]

Introduction

A partial clone is an efficient way to clone only part of the git history of a certain repository.

For example, we can clone big repositories with an extensive Git history using partial clones and save much time and networks.

git clone --filter=blob:none --no-checkout https://github.com/autowarefoundation/autoware.universe
git checkout $tag # This could be either a branch or a random tag in the history

At the time the PR was created, the partial clone could shrink the download size of autoware.universe from 1.5G (1.1G .git + 340M codes) to 500M (160M.git + 340M codes).

Implementation

In this PR, I incorporate the argument in the vcs import command for Git client. The codes are straight-forward, but it solve many of the problems we faced.