Merge branch 'master' of https://github.com/shimat/opencvsharp

ReleaseMaker: add netcoreapp2.0

Merge pull request shimat#664 from shimat/nuget_beta_remover

.nupkg beta remover

ReleaseMaker 4.0.1

Merge pull request shimat#577 from shimat/4.0

4.0

Merge pull request shimat#571 from shimat/3.4.3

3.4.4

Merge pull request shimat#562 from shimat/RenderBlobs_bugfix

BlobRenderer: draw MaxX and MaxY pixels

Merge pull request shimat#508 from shimat/substitute_macros

substitute DEFINE_FILENODE_READ_VEC macro

appveyor.yml 3.3.1 -> 3.4.1

Merge branch '3.3.1'