[check,libsbml] Update, port fixes

[dg0yt]

Updates libsbml.
There is stilled a vendored minizip.

The exported CMake package is called sbml<-static> instead libsml<-static> on !windows, sbmlteam/libsbml#355.
I now made the existing vcpkg "libsbml" polyfill cover all actual installations. This is actually unofficial...

check is used only by libsbml. The problems with that port were hidden not only by CI not building tests, but by the claim that libsbml's tests would only work on !windows... One of the issues fixed now (x64-windows-static):

CMake Error at D:/installed/x64-windows-static/share/check/check-targets.cmake:87 (message):
  The imported target "Check::checkShared" references the file

     "D:/installed/x64-windows-static/debug/bin/checkDynamic.dll"

  but this file does not exist.  Possible reasons include:

  * The file was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and contained

     "D:/installed/x64-windows-static/share/check/check-targets.cmake"

  but not all the files it references.

Call Stack (most recent call first):
  D:/installed/x64-windows-static/share/check/check-config.cmake:26 (include)
  C:/a/1/s/scripts/buildsystems/vcpkg.cmake:859 (_find_package)
  CMakeLists.txt:680 (find_package)

[jimwang118]

All features passed with following triplets:

x86-windows
x64-windows
x64-windows-static

[JavierMatosD]

I'm assuming this find_package is supposed to be inside the if statement?

Suggested change

	+ if(NOT TARGET BZ2::BZ2)
	+ endif()
	+ find_package(BZip2 REQUIRED)
	+ if(NOT TARGET BZ2::BZ2)
	+ find_package(BZip2 REQUIRED)
	+ endif()

[dg0yt]

No. It is meant to be called without guard.