Csv2bufr

What's Changed
* Read missing value from CSV2BUFR_MISSING_VALUE
* Update of docs to more fully describe ENV variables

**Full Changelog**: https://github.com/wmo-im/csv2bufr/compare/v0.8.4...v0.8.5

What's Changed
* Data mappings fix by david-i-berry in https://github.com/wmo-im/csv2bufr/pull/142
* Docker update by david-i-berry in https://github.com/wmo-im/csv2bufr/pull/143


**Full Changelog**: https://github.com/wmo-im/csv2bufr/compare/v0.8.3...v0.8.4

Bug fix for 137 and https://github.com/aothompson/FM35_transform/issues/1

`shortDelayedDescriptorReplicationFactor` and `extendedDelayedDescriptorReplicationFactor` now set correctly.

What's Changed
* Thread bug fix by david-i-berry in https://github.com/wmo-im/csv2bufr/pull/133

**Full Changelog**: https://github.com/wmo-im/csv2bufr/compare/v0.8.1...v0.8.2

- Improvements
- Update to handle template indexing and returned object.
- Filename stem now returned to allow easier feedback to user when template not found.

What's Changed
* Template refactor by david-i-berry in https://github.com/wmo-im/csv2bufr/pull/125
* Update to Dockerfile to fix GHCR / DHCR issues. by david-i-berry in https://github.com/wmo-im/csv2bufr/pull/127
* Backwards compatibility - templates by david-i-berry in https://github.com/wmo-im/csv2bufr/pull/128
* V0.8.0 by david-i-berry in https://github.com/wmo-im/csv2bufr/pull/129


**Full Changelog**: https://github.com/wmo-im/csv2bufr/compare/v0.7.4...v0.8.0