Cmake gtest (#72)

* Check rackpin and gear for zero radii

* rebase zero-radii-check (#69)

* contributing

* Update push-freecad.yml

updated actions/checkout to v4

* dragging log for debugging

* fix calcdxNorm crash

* setDebug and remove MBDyn*

* Update cmakelists.txt

* fix includes for gcc-14

gcc-14 is more disciplined about not including <algorithm> transitively.

* fix runDragStep

* backhoe files (#65)

* Mark unused variables to silence compiler warnings. (#64)

* Backhoe issues (#67)

* backhoe issues

* runDragStep edit

* backhoe issues

* runDragStep edit

* Reduce large drag step progressively until convergence.

* Switch to using built-in M_PI, even on MSVC (#68)

---------

Co-authored-by: Brad Collette <bradcollette@pop-os.localdomain>
Co-authored-by: mosfet80 <realeandrea@yahoo.it>
Co-authored-by: PaddleStroke <pierrelouis.boyer@gmail.com>
Co-authored-by: Jed Brown <jed@jedbrown.org>
Co-authored-by: sliptonic <shopinthewoods@gmail.com>
Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* in progress

* Gtest added

---------

Co-authored-by: Brad Collette <bradcollette@pop-os.localdomain>
Co-authored-by: mosfet80 <realeandrea@yahoo.it>
Co-authored-by: PaddleStroke <pierrelouis.boyer@gmail.com>
Co-authored-by: Jed Brown <jed@jedbrown.org>
Co-authored-by: sliptonic <shopinthewoods@gmail.com>
Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

OndselSolver/BasicIntegrator.cpp

@@ -88,7 +88,7 @@ void BasicIntegrator::initialize()
 	opBDF->timeNodes = tpast;
 }
 
-void BasicIntegrator::logString(std::string& str)
+void BasicIntegrator::logString(const std::string& str)
 {
 	system->logString(str);
 }