microstrain_3dmgx2_imu: 1.5.12-1 in 'hydro/distribution.yaml' [bloom]

Increasing version of package(s) in repository `microstrain_3dmgx2_imu` to `1.5.12-1`:

- distro file: `hydro/distribution.yaml`
- bloom version: `0.5.10`
- previous version for package: `1.5.12-0`

## microstrain_3dmgx2_imu

```
* Added dependency on log4cxx.
* Contributors: Chad Rockey
```