fix!: DAPI is missing on seed nodes

[shumkov]

Issue being fixed or feature implemented

Seed nodes should run DAPI so DAPI client will be able to obtain SML. DAPI in turn, requires Gateway and Core.

What was done?

• Use the dashmate role to deploy seed nodes
• Added tenderdash_mode variable to the role

How Has This Been Tested?

• Destroy seed nodes with v1.0-dev branch
• Deploy seed nodes with this PR

Breaking Changes

Seed nodes won't be compatible

Checklist:

• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have added or updated relevant unit/integration/functional/e2e tests
• [x] I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• [x] I have assigned this pull request to a milestone