Necstdb

What's Changed
* Support pad byte stripping by KaoruNishikawa in https://github.com/ogawa-ros/necstdb/pull/27
* Update project version by KaoruNishikawa in https://github.com/ogawa-ros/necstdb/pull/28


**Full Changelog**: https://github.com/ogawa-ros/necstdb/compare/v0.2.8...v0.2.9

What's Changed
* Check header file existence by KaoruNishikawa in https://github.com/ogawa-ros/necstdb/pull/24
* Fix data handling for array of string by KaoruNishikawa in https://github.com/ogawa-ros/necstdb/pull/25


**Full Changelog**: https://github.com/ogawa-ros/necstdb/compare/v0.2.7...v0.2.8

What's Changed
* Change Python versions to support by KaoruNishikawa in https://github.com/ogawa-ros/necstdb/pull/21


**Full Changelog**: https://github.com/ogawa-ros/necstdb/compare/v0.2.6...v0.2.7

New Features

- Method to save arbitrary file in database
- Reader for saved file

Bug Fixes

None.

What's Changed
* File save by KaoruNishikawa in https://github.com/ogawa-ros/necstdb/pull/17
* Update release by KaoruNishikawa in https://github.com/ogawa-ros/necstdb/pull/19


**Full Changelog**: https://github.com/ogawa-ros/necstdb/compare/v0.2.5...v0.2.6

*This update fixes:*
- invalid byte count method
- invalid type translation between packages

*And this version implements:*
- utility function to flatten nested array

*Additionally this version provides:*
- a brief documentation how to use this package