Management jvm.options (ES V6 V7 < 7.7.0)

[phaedriel]

Pull Request (PR) description

• Add new parameter (enum) $release_type to separate differents jvm.options (some expert settings are different between 'DEB' and 'LINUX' ...etc and between v7 and v6)
  • List of values > https://www.elastic.co/fr/downloads/past-releases/elasticsearch-7-6-2
  • Add value in "data" yaml files
• Templates 7 are made from 7.6.2 releases
• Templates 6 are made from 6.8.23 releases
• Add code in 000_elasticsearch_init_spec.rb for the coverage 100%

Templates are in 2 parts

• first part $jvm_options (-Xms, -Xmx and others custom choices)
• second part "expert settings" : fixed values

This Pull Request (PR) fixes the following issues

• 'jvm.options' (prerequisite, required file) is unmanaged by module #1093
• jvm_options may not be overridable because of sort in template #1053

Pull request acceptance prerequisites:

• Signed the CLA (if not already signed)
• Rebased/up-to-date with base branch
• Tests pass
• Updated CHANGELOG.md with patch notes (if necessary)
• Updated CONTRIBUTORS (if attribution is requested)

[phaedriel]

I close. i do an another proposition #1168