fix(KmlStyle): Fix parsing outline tag when its declared but value is '0'

[dkati]

If the KML contains <outline>0</outline> the parser still believes there is a border on each polygon

before the commit:

after the commit:

the KML

Fixes #826

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[dkati]

@googlebot I signed it!

[dkati]

@arriolac any update here?

[dkati]

@arriolac Chris. check this out. i dont know what Semantic bot says :P

[arriolac]

Thanks for the PR!

[arriolac]

@arriolac Chris. check this out. i dont know what Semantic bot says :P

Semantic bot checks that the PR title matches the expected commit convention. I updated your PR title so it does.

[googlemaps-bot]

🎉 This PR is included in version 2.2.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀