[tests] rolloverindex 7.x

[Mpdreamz]

build.bat seed:9368 integrate 7.0.0 "writable" "rolloverindex"

Interesting one because the seed caused random data to create a mapping exception needs looking into.

From: #4004

Failed   Tests.Indices.IndexManagement.RolloverIndex.RolloverIndexApiTests.ReturnsExpectedStatusCode
Error Message:
 Expected response.IsValid to be true because Invalid NEST response built from a successful (200) low level call on POST: /nest-initializerasync-30e60706/_bulk?pretty=true&error_trace=true&refresh=true
# Invalid Bulk items:
  operation[592]: index returned 400 _index: nest-initializerasync-30e60706 _type: _doc _id: Tremblay - Larkin25297 _version: 0 error: Type: mapper_parsing_exception Reason: "failed to parse field [tags.added] of type [date] in document with id 'Tremblay - Larkin25297'" CausedBy: "Type: illegal_argument_exception Reason: "failed to parse date field [2019-08-07T00:47:19.6+00:00] with format [strict_date_optional_time||epoch_millis]" CausedBy: "Type: date_time_parse_exception Reason: "Failed to parse with all enclosed parsers"""
# Audit trail of this API call:
 - [1] HealthyResponse: Node: http://localhost:9200/ Took: 00:00:10.1837038