fix loadFile for package.mo: don't copy it out of its package directory

[arun3688]

Related Issues

OpenModelica/OpenModelica#16771

Purpose

load directory-based packages (package.mo) in place instead of copying just the one file, it is possible the model might be located in sub-directories

[adeas31]

@arun3688 would be nice to add a test about it so we don't break it in future.

[arun3688]

@adeas31 sure i will add it

[AnHeuermann]

I updated the Windows installer, let's see if the Windows nightly test passes now.

[adeas31]

I think the Windows tests will still fail. See #478

[adeas31]

Don't skip the linerarization tests. If we have changed the output then update the test.

[arun3688]

this should be fixed with this OpenModelica/OpenModelica#17046, test it from tomorrow nightly builds

[casella]

@arun3688, didn't make it through the testsuite.

[arun3688]

@casella yes the problem is on the nightly builds, since the default runtime has been changed to rust, i implemented the fix today OpenModelica/OpenModelica#17046, so we have to wait for nightly builds tomorrow to get the fix for CI to pass