Update build system#59

Merged

rgoers merged 7 commits intoapache:masterfrom

fluffynuts:update-build-system

Jul 10, 2020

Commits on Apr 13, 2020

:construction: convert to unified modern .csproj, build & tests pass; still need to check on output paths and ClientProfile requirements
fluffynuts
committed
:sparkles: netstandard2.0 support
fluffynuts
committed

Commits on May 16, 2020

:tada: can build a package after a release build, using nuget
fluffynuts
committed
:package: generate build artifact: zip of all released binaries
fluffynuts
committed

Commits on May 18, 2020