airtasker#1417 @oaSchemaProp example fails with numerical strings, Date, DateTime, Object, Array, Union or Intersection

[Thodin3]

Description, Motivation and Context

Please see #1417
When using @oaSchemaProp example, providing a numerical string like "123.3" for a String type fails.
When using @oaSchemaProp example for Date, DateTime, Object, Array, Union or Intersection type it fails.

Fix in this PR :
in function extractJSDocSchemaProps(
const typeOf is refactored and will use the JSON.parse real type instead of regexp filtering.

Checklist:

• I've added/updated tests to cover my changes
• I've created an issue associated with this PR

[lfportal]

LGTM, thanks @Thodin3