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`.

coderd/coderd.go

@@ -111,6 +111,15 @@ func New(options *Options) (http.Handler, func()) {
 				r.Get("/", api.templatesByOrganization)
 				r.Get("/{templatename}", api.templateByOrganizationAndName)
 			})
+			r.Route("/workspaces", func(r chi.Router) {
+				r.Post("/", api.postWorkspacesByOrganization)
+				r.Get("/", api.workspacesByOrganization)
+				r.Route("/{user}", func(r chi.Router) {
+					r.Use(httpmw.ExtractUserParam(options.Database))
+					r.Get("/{workspace}", api.workspaceByOwnerAndName)
+					r.Get("/", api.workspacesByOwner)
+				})
+			})
 		})
 		r.Route("/parameters/{scope}/{id}", func(r chi.Router) {
 			r.Use(apiKeyMiddleware)
@@ -181,11 +190,6 @@ func New(options *Options) (http.Handler, func()) {
 						r.Get("/", api.organizationsByUser)
 						r.Get("/{organizationname}", api.organizationByUserAndName)
 					})
-					r.Route("/workspaces", func(r chi.Router) {
-						r.Post("/", api.postWorkspacesByUser)
-						r.Get("/", api.workspacesByUser)
-						r.Get("/{workspacename}", api.workspaceByUserAndName)
-					})
 					r.Get("/gitsshkey", api.gitSSHKey)
 					r.Put("/gitsshkey", api.regenerateGitSSHKey)
 				})