worker: Define new jobs to handle copying and resharing of images

The copy job copies from one region to another. It does not preserve the
sharing on the ami and it's snapshot, that needs to be queued
separately.

internal/worker/json.go

@@ -256,6 +256,33 @@ type ContainerResolveJobResult struct {
 	JobResult
 }
 
+type AWSEC2ShareJob struct {
+	Ami               string   `json:"ami"`
+	Region            string   `json:"region"`
+	ShareWithAccounts []string `json:"shareWithAccounts"`
+}
+
+type AWSEC2ShareJobResult struct {
+	JobResult
+
+	Ami    string `json:"ami"`
+	Region string `json:"region"`
+}
+
+type AWSEC2CopyJob struct {
+	Ami          string `json:"ami"`
+	SourceRegion string `json:"source_region"`
+	TargetRegion string `json:"target_region"`
+	TargetName   string `json:"target_name"`
+}
+
+type AWSEC2CopyJobResult struct {
+	JobResult
+
+	Ami    string `json:"ami"`
+	Region string `json:"region"`
+}
+
 //
 // JSON-serializable types for the client
 //