LUCENE-8964: Fix geojson shape parsing on string arrays in properties

[spinscale]

Description

The builtin geo shape parser throws an exception when the properties contains an array of strings.

Solution

Allow parsing of such arrays by reading strings.

Tests

Add unit test has been added for this case.

Please review the following and check all that apply:

• I have reviewed the guidelines for How to Contribute and my code conforms to the standards described there to the best of my ability.
• I have created a Jira issue and added the issue ID to my pull request title.
• I am authorized to contribute this code to the ASF and have removed any code I do not have a license to distribute.
• I have developed this patch against the master branch.
• I have run ant precommit and the appropriate test suite.
• I have added tests for my changes.

[iverase]

LGTM