GitLab

* API for querying devices

* CUDA and HIP implementations of getDevices()

* Fix test failures

* Fix test failures

* CUDA returns correct devices even if no context has been created

* Return a single device for Reference and CPU

* Fix CI failure

* Replace SimTK-containing file headers

* Update file headers for new Tinker reader files added

* Can use getPlatform() instead of getPlatformByName()

* More concise arguments for getState()

Fixed Linux compilation error.  Since dlopen() doesn't support RTLD_FIRST on Linux, both plugin initializer functions are now mandatory.

Added a version of Platform::getPlatform() that looks up platforms by name.  Added a Context constructor that allows platform-specific properties to be specified.