Reversing 'types' List Order and Removing Unneeded 'types' designations

We pushed several breaking changes to Article data, Job Posts, Discussion Threads, and Product Offers in the KG.

FIRST:

The 'types' array was sorted with the most specific type first. We reversed the order to make the array consistent with 'types' in Organization, Person, and Place entities in the graph.

SECOND:
The 'types' array currently always contains GlobalIndexDiffbotEntity for Articles/Job Posts/Discussions/Product Offers. We have removed that unnecessary 'types' designation, i.e.

"types": [
"Article",
"GlobalIndexDiffbotEntity"
]

became

"types": [
"Article"
]

similar to

"types": [
"Organization",
"Corporation",
"Company"
]

FINALLY:
Some 'types' arrays previously contained GlobalIndexComplexTypeWrapper as well. We removed that unnecessary 'types' designation, i.e.

"types": [
"Discussion",
"GlobalIndexComplexTypeWrapper",
"GlobalIndexDiffbotEntity"
]

became

"types": [
"Discussion"
]