Add install script

[johnowl]

Make it easy to use in a pipeline when docker is not available.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.04%. Comparing base (e817301) to head (8011c81). Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #558 +/- ## ======================================= Coverage 84.04% 84.04% ======================================= Files 227 227 Lines 13012 13012 ======================================= Hits 10936 10936 Misses 1666 1666 Partials 410 410 ``` | [Flag](https://app.codecov.io/gh/Tufin/oasdiff/pull/558/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Tufin) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/Tufin/oasdiff/pull/558/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Tufin) | `84.04% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Tufin#carryforward-flags-in-the-pull-request-comment) to find out more.

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[reuvenharrison]

Thanks for your contribution :-)