Imagine being able to create postgresql extensions in rust. Bindings for postgresql 9.4 and 9.5
```
include "postgres.h"
include "fmgr.h"
include "utils/builtins.h"
include "utils/json.h"
include "utils/lsyscache.h"
include "replication/output_plugin.h"
include "replication/logical.h"
```
Examples
