update elastic settings in templates

Update and refactor bootstrap process

changed milestone to %M25 - Release 0.28

added GC label

assigned to @aliaksandr_ramanovich

added 2 commits

• a7aa98f8 - update gc bootstrap: add common part, update system template
• c64ea72b - update template for core bootstrap

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added 3 commits

• f279a781 - remove baremetal parts
• c764bc38 - environment parameter is not used in bootstrap
• 7b6a2deb - update templates

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marked this merge request as ready

changed the description

requested review from @Danylo_Vanin

added 1 commit

• a31fd288 - remove duplicates from template

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added 2 commits

• 1afc91ef - delete helpers file, use different templates for system and data partitions
• 405328e9 - remove helpers from core bootstrap

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added 1 commit

• 50bf7ab9 - fix mistypo. add copyright

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resolved all threads

mentioned in commit 858a9b5e

merged