Libraries updated

[dmiller2718]

As I move to 1.10 and .Net Core 3.1 support, I've had to update the packaging for various supporting libraries.  While I was at it, I also brought them up to date with changes in the JVM versions.

The new packages support net461 and netstandard2.0.

I have not tested these new versions against ClojureCLR 1.9.

Libraries updated (on nuget.org and clojars.org):

clr.tools.reader => 1.3.2.2

clojure.tools.namespace => 1.0.0.2

clojure.tools.test.check => 1.0.0.1

clojure.tools.test.generative => 1.0.0

clojure.data.generators => 1.0.0

clojure.spec.alpha => 0.2.187

clojure.core.specs.alpha => 0.2.45

Regarding 1.10 and .Net Core 3.1, per  suggestions in this forum I am only aiming at a non-AOT-compilation version for Core.

Only a few things remain to be done: fixing up testing under Core (some tests should not be run as they require AOT-compilation), finish rebuilding the build.proj tasks for distribution, and minor other cleanup.

-David