Add agent token field

Closes #1897 (closed)

changed milestone to %Arkindex 1.7.3

requested review from @babadie

assigned to @erouchet

added 4 commits

• e326c11a - 1 commit from branch release-1.7.3
• ac4a7dd3 - Rename task_token_default to token_default
• 366c1ac5 - Add agent token
• d9a1eecb - Split migrations to generate tokens for existing agents

Compare with previous version

approved this merge request

added 4 commits

• 37965e7e - 1 commit from branch release-1.7.3
• 2007207e - Rename task_token_default to token_default
• 4388fe9c - Add agent token
• b77dd9d0 - Split migrations to generate tokens for existing agents

Compare with previous version

enabled an automatic merge when all merge checks for b77dd9d0 pass

merged