[Geotiff] [MetaCRS] Motion: Promote libgeotiff 1.5.0RC1 to final release

[Howard Butler]

> On Mar 20, 2019, at 5:39 AM, Even Rouault <even.rouault at spatialys.com> wrote:
> 
> Dear metacrs PSC members,
> 
> As no issues were reported, I motion to promote libgeotiff 1.5.0RC1 to final 
> release.
> 
> See https://lists.osgeo.org/pipermail/geotiff/2019-March/000855.html for more 
> details on this release.

+1 Howard