Move cri server packages under pkg/cri

Organizes the cri related server packages under pkg/cri

Signed-off-by: Derek McGowan <derek@mcg.dev>

pkg/cri/store/errors.go

@@ -0,0 +1,33 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package store
+
+import "github.com/containerd/containerd/errdefs"
+
+var (
+	// ErrAlreadyExist is the error returned when data added in the store
+	// already exists.
+	//
+	// This error has been DEPRECATED and will be removed in 1.5. Please switch
+	// usage directly to `errdefs.ErrAlreadyExists`.
+	ErrAlreadyExist = errdefs.ErrAlreadyExists
+	// ErrNotExist is the error returned when data is not in the store.
+	//
+	// This error has been DEPRECATED and will be removed in 1.5. Please switch
+	// usage directly to `errdefs.ErrNotFound`.
+	ErrNotExist = errdefs.ErrNotFound
+)