010 Editor templates (DEX.bt works now for parsing!)

| type | ticket                                               | description                                      |
|------|------------------------------------------------------|--------------------------------------------------|
| bug  | [#120](https://github.com/d0c-s4vage/pfp/issues/120) | Fixes integer promotion problems, part deux      |
| bug  | [#115](https://github.com/d0c-s4vage/pfp/issues/115) | Fixes problem with chained assignments           |
| bug  | [#113](https://github.com/d0c-s4vage/pfp/issues/113) | Error with `_pfp__parse` and `set_val` parameter |