[Stack Monitoring] Missing mapping for "event.created" missing in the integration packages

[crespocarlos]

Some SM integration packages data-streams are missing the mapping for the event.created field, which causes them to be mapped as keyword and not date.

Here are a few examples of data streams that are missing this mapping:

• Elasticsearch
  • gc
  • server
  • deprecation
  • slowlog
• Kibana
  • log
  • audit
• Logstash
  • log

It might be interesting to make sure the SM packages contain all necessary event fields mapped

- external: ecs
  name: event.ingested
- external: ecs
  name: event.kind
- external: ecs
  name: event.category
- external: ecs
  name: event.type
- external: ecs
  name: event.created
- external: ecs
  name: event.original
- external: ecs

Acceptance criteria

• event.date is mapped as date

[jennypavlova]

The event.created is already mapped in this PR - Looks duplicate of #5774. I am adding the other missing event fields mentioned in this issue and will open a PR.

[elasticmachine]

Package elasticsearch - 1.7.2 containing this change is available at https://epr.elastic.co/search?package=elasticsearch

[elasticmachine]

Package kibana - 2.3.4 containing this change is available at https://epr.elastic.co/search?package=kibana

[elasticmachine]

Package logstash - 2.3.2 containing this change is available at https://epr.elastic.co/search?package=logstash