Error occurs in Brutile Version 0.21.1 & 0.21.0 & 0.19.0

[roboteck]

Hi if I upgrade the Brutile Version from 0.18.2 to 0.21.1 or 0.21.0 or 0.19.0 I get the following error

Severity Code Description Project File Line Suppression State Error CS0535 'TileSourceWrapper' does not implement interface member 'ITileSource.Attribution' DotSpatial.Plugins.BruTileLayer C:\Users\User\Downloads\DotSpatial.Plugins-master\DotSpatial.Plugins-master\DotSpatial.Plugins.BruTileLayer\Configuration\TileSourceWrapper.cs 5 Active

[pauldendulk]

The interface of those versions is not compatible with the previous ones. Such an upgrade requires an update to DotSpatial.Plugins.BruTileLayer itself.

To make this easier to users we should set major BruTile version to 1 so we can follow regular semver.org conventions. Also the nuspec dependencies could be more restrictive.