Add support for successful conda builds

[tony-p]

Made changes to the cmake files to also find ZeroMQ when using the conda dependency while still being able to find it for the traditional builds.

Add extra include to minitrace.cpp so that standard int definition macros are definitely available in a linux conda environment

Add workflow for conda builds

Solves: #640

Prepares for: #644

[tony-p]

2 tests are failing on the Windows build, 1 is the same master (see #647)

and 1 other SequenceTripleActionTest - TripleAction

[tony-p]

Both failures seem to be timing related

[ RUN      ] SequenceTripleActionTest.TripleAction
D:\a\BehaviorTree.CPP\BehaviorTree.CPP\build-env\BehaviorTree.CPP\tests\gtest_sequence.cpp(274): error: Value of: system_clock::now() < timeout
  Actual: false
Expected: true
[  FAILED  ] SequenceTripleActionTest.TripleAction (655 ms)

Locally this test passes for me on windows

[facontidavide]

thanks a lot