vehicle management functions

[nbry]

This PR adds functions in the smartcar namespace for Vehicle Management API.

Asana: https://app.asana.com/0/1205137826392826/1205221447377578

[nbry]

ooo one second... I think I may have accidentally formatted this project with double quotes

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.03% :tada:

Comparison is base (0b18b9c) 99.60% compared to head (f11ce9b) 99.64%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #162 +/- ## ========================================== + Coverage 99.60% 99.64% +0.03% ========================================== Files 6 6 Lines 253 280 +27 ========================================== + Hits 252 279 +27 Misses 1 1 ``` | [Files Changed](https://app.codecov.io/gh/smartcar/node-sdk/pull/162?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=smartcar) | Coverage Δ | | |---|---|---| | [index.js](https://app.codecov.io/gh/smartcar/node-sdk/pull/162?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=smartcar#diff-aW5kZXguanM=) | `100.00% <100.00%> (ø)` | | | [lib/util.js](https://app.codecov.io/gh/smartcar/node-sdk/pull/162?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=smartcar#diff-bGliL3V0aWwuanM=) | `100.00% <100.00%> (ø)` | |

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[smartcar-ci]

:tada: This PR is included in version 9.5.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: