Venkateshprasad

Robustly handling the FMU files with symlinks in `binaries`

1

`fmuChecker.linux64` fails to recognize and read the FMUs that contain symbolic links in binaries The `zip` by default converts the symbolic links to actual target files and deflates and stores....

Closes #2810 These work now: ```julia @mtkmodel VectorDefaultWithMetadata begin @parameters begin n[1:3] = [1, 2, 3], [description = "Vector defaults"] end end @mtkmodel VectorConditionalDefault begin @structural_parameters begin flag = true...

Closes #3601 Adds the arguments of a base system to the main system. `@extends PartialSystem()` Note that we have an alternate (and the initial) syntax to avoid enforcing that PartialSystem...