feat: Move workspaces under organizations (#1109)

This removes split ownership for workspaces. They are now
a resource of organizations and have a designated owner,
which is a user.

This enables simple administration for commands like:
- `coder stop ben/dev`
- `coder build logs colin/arch`

or if we decide to allow administrators to access workspaces,
they could even SSH using this syntax: `coder ssh colin/dev`.

cmd/templater/main.go

@@ -171,7 +171,7 @@ func parse(cmd *cobra.Command, parameters []codersdk.CreateParameterRequest) err
 		return err
 	}
 
-	workspace, err := client.CreateWorkspace(cmd.Context(), created.UserID, codersdk.CreateWorkspaceRequest{
+	workspace, err := client.CreateWorkspace(cmd.Context(), created.OrganizationID, codersdk.CreateWorkspaceRequest{
 		TemplateID: template.ID,
 		Name:       "example",
 	})