Build fixes for the test, disable building tests and examples by default#23

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TheFGFSEagle wants to merge 2 commits intobadaix:masterfrom

TheFGFSEagle:master

Commits on Mar 16, 2023

Switch off test and example building for inclusion as git submodule
TheFGFSEagle
committed
Update catch.hpp with the version from my distro (Ubuntu Studio 22.04 LTS) which builds without errors
TheFGFSEagle
committed