Merge pull request ruslo#1655 from caseymcc/wt_4_0_4

 add wt 4.0.4

Boost: Add more variants for search

Prepare for Boost 1.69.0 release

libuv 1.24.0-p1

Update rapidjson (ruslo#1659)

libuv 1.24.0-p0

Merge pull request ruslo#1664 from mchiasson/pr.stb

Update 'stb' to v0.0.0-e6afb9c-p0

Merge pull request ruslo#1663 from dvirtz/pr.msvc.2019

support MSVC 2019

Add corrade package (ruslo#1646)

Add LodePNG to hunter (ruslo#1636)

mxnet is not compatible with OpenCV 4.0