EWAH bitmaps can be decoded from disk and enabled bits can be acted upon by calling
a closure each time an index is set to true.

Please note that the current feature set is minimal and driven by the need of the
`git-index` crate.

### Commit Statistics

 - 10 commits contributed to the release over the course of 6 calendar days.
 - 6 days passed between releases.
 - 0 commits where understood as [conventional](https://www.conventionalcommits.org).
 - 1 unique issue was worked on: #293

### Thanks Clippy

[Clippy](https://github.com/rust-lang/rust-clippy) helped 1 time to make code idiomatic. 

### Commit Details

 * **#293**
    - prepare changelogs for git-index and dependencies (f54bf4b)
    - basic itreation of set bits (4796ad9)
    - refactor (a1dc8de)
    - Support for 'sdir' extension (a38c3b8)
    - rlw field is actually an offset into `bits` when used at runtime (7d1aba1)
    - Turn git-bitmap Array into Vec, as it will be able to adjust its size (9e99e01)
    - EWAH decoding works (bad7e19)
    - first stab at decoding ewah bitmaps (353a53c)
 * **Uncategorized**
    - thanks clippy (93c3d23)
    - Fix index without extension test & thanks clippy (066464d)