feat(opm): add unprivileged registry add

Add the ability to pull and unpack bundle images without using to an external tool or daemon.

Also, introduce a new set of bundle image oriented interfaces to decouple image interaction from shelling out to external tools.

Author: njhale

go.mod

@@ -4,8 +4,13 @@ go 1.13
 
 require (
 	github.com/antihax/optional v0.0.0-20180407024304-ca021399b1a6
+	github.com/containerd/containerd v1.3.2
+	github.com/containerd/continuity v0.0.0-20200228182428-0f16d7a0959c // indirect
+	github.com/deislabs/oras v0.8.1
 	github.com/docker/distribution v2.7.1+incompatible
+	github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c // indirect
 	github.com/ghodss/yaml v1.0.0
+	github.com/gogo/googleapis v1.3.2 // indirect
 	github.com/golang-migrate/migrate/v4 v4.6.2
 	github.com/golang/mock v1.3.1
 	github.com/golang/protobuf v1.3.2
@@ -14,22 +19,25 @@ require (
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.2.2
 	github.com/onsi/ginkgo v1.10.1
 	github.com/onsi/gomega v1.7.0
+	github.com/opencontainers/image-spec v1.0.1
 	github.com/operator-framework/api v0.1.0
 	github.com/otiai10/copy v1.0.2
-	github.com/pkg/errors v0.8.1
+	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.4.2
 	github.com/spf13/cobra v0.0.5
 	github.com/stretchr/testify v1.4.0
+	go.etcd.io/bbolt v1.3.3
 	golang.org/x/net v0.0.0-20191028085509-fe3aa8a45271
 	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
-	google.golang.org/grpc v1.24.0
+	google.golang.org/grpc v1.27.0
 	gopkg.in/yaml.v2 v2.2.4
 	k8s.io/api v0.0.0
 	k8s.io/apiextensions-apiserver v0.0.0
 	k8s.io/apimachinery v0.0.0
 	k8s.io/client-go v8.0.0+incompatible
 	k8s.io/klog v1.0.0
 	k8s.io/kubectl v0.0.0
+	rsc.io/letsencrypt v0.0.3 // indirect
 )
 
 replace (