APPSRE-10385 schema to define custom tokens

[fishi0x01]

⚠️ WIP

Dynatrace Token Provider will allow tenants to define their own Dynatrace tokens. Further, tenants define cluster labels and which dynatrace token should be associated with them.

my-dynatrace-token.yml

$schema: /dynatrace/dynatrace-token-type-1.yml

name: my-token-type  # this will be the secret name in dynatrace namespace
scopes:
- activeGateTokenManagement.create
- entities.read

my-dynatrace-cluster-label.yml

$schema: /dynatrace/dynatrace-cluster-label-1.yml

name: dtp.cluster.label.name 
tokenTypes:
- my-dynatrace-token.yml