HCL2: allow to describe a build block
HCL2: allow to describe a build block

rnaveiras/packer,mitchellh/packer,pecigonzalo/packer,pecigonzalo/packer,mitchellh/packer,mitchellh/packer,mitchellh/packer,rnaveiras/packer,hashicorp/packer,ricardclau/packer,hashicorp/packer,ricardclau/packer,mitchellh/packer,pecigonzalo/packer,ricardclau/packer,ricardclau/packer,ricardclau/packer,rnaveiras/packer,hashicorp/packer,rnaveiras/packer,pecigonzalo/packer,rnaveiras/packer,ricardclau/packer,rnaveiras/packer,hashicorp/packer