refactor cursetree into node.c & tree.c

cursetree/tree.c

@@ -0,0 +1,30 @@
+#include <stdlib.h>
+
+#include "ncrswrap.h"
+#include "tree.h"
+
+/*
+ */
+static struct crs_node *init_root_node(void) {
+  WINDOW *rootwin;
+
+  rootwin = root_window();
+  return init_window_node(rootwin);
+}
+
+int init_tree(struct crs_tree **const tree) {
+    *tree = (struct crs_tree *)malloc(sizeof(struct crs_tree));
+    (*tree)->root = init_root_node();
+return EXIT_SUCCESS;
+}
+
+void destroy_tree(struct crs_tree *const tree) {
+  destroy_node(tree->root);
+  endwin();
+  free(tree);
+}
+
+void resize_tree(struct crs_tree *const tree, struct crs_nodedims *const dims) {
+  resize_node(tree->root, dims);
+}
+