Rename container_sort_workspaces and container_wrap_children

This commit renames container_sort_workspaces to output_sort_workspaces
and moves it to output.c.

This also renames container_wrap_children to workspace_wrap_children and
moves it to workspace.c. This function is only called with workspaces.

include/sway/output.h

@@ -58,6 +58,8 @@ void output_damage_whole_container(struct sway_output *output,
 
 struct sway_container *output_by_name(const char *name);
 
+void output_sort_workspaces(struct sway_container *output);
+
 void output_enable(struct sway_output *output);
 
 bool output_has_opaque_overlay_layer_surface(struct sway_output *output);

include/sway/tree/container.h

@@ -361,12 +361,4 @@ bool container_is_floating_or_child(struct sway_container *container);
  */
 bool container_is_fullscreen_or_child(struct sway_container *container);
 
-/**
- * Wrap the children of parent in a new container. The new container will be the
- * only child of parent.
- *
- * The new container is returned.
- */
-struct sway_container *container_wrap_children(struct sway_container *parent);
-
 #endif

include/sway/tree/layout.h

@@ -45,8 +45,6 @@ void container_move(struct sway_container *container,
 enum sway_container_layout container_get_default_layout(
 		struct sway_container *con);
 
-void container_sort_workspaces(struct sway_container *output);
-
 struct sway_container *container_get_in_direction(struct sway_container
 		*container, struct sway_seat *seat, enum movement_direction dir);
 

include/sway/tree/workspace.h

@@ -50,4 +50,11 @@ struct sway_container *workspace_output_get_highest_available(
 
 void workspace_detect_urgent(struct sway_container *workspace);
 
+/**
+ * Wrap the workspace's tiling children in a new container.
+ * The new container will be the only direct tiling child of the workspace.
+ * The new container is returned.
+ */
+struct sway_container *workspace_wrap_children(struct sway_container *ws);
+
 #endif