plugins CHANGE unify naming in plugins API

All the symbols connected with type plugins are now prefixed by
lyplg_type_ and symbols connected with extensions have lyplg_ext_
prefix.
diff --git a/src/tree_data.c b/src/tree_data.c
index 3d4fe56..aca0a5d 100644
--- a/src/tree_data.c
+++ b/src/tree_data.c
@@ -61,7 +61,7 @@
 {
     LY_ERR ret;
     struct ly_err_item *err = NULL;
-    uint32_t options = (dynamic && *dynamic ? LY_TYPE_STORE_DYNAMIC : 0);
+    uint32_t options = (dynamic && *dynamic ? LYPLG_TYPE_STORE_DYNAMIC : 0);
 
     if (incomplete) {
         *incomplete = 0;