Move 'snippet' queries to 'snippets' folders

python/ql/examples/snippets/emptyblock.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Empty blocks
+ * @description Finds the first statement in a block consisting of nothing but Pass statements
+ * @tags empty
+ *       block
+ *       statement
+ */
+ 
+import python
+
+from StmtList blk
+where not exists(Stmt s | not s instanceof Pass)
+select blk.getItem(0)