A way to give several binaries to a SystemExecTask

[dumoulin]

SystemExecTask is platform dependent, and a VMTask should be provided also for providing a platform-independent mole. But, during the development phase, SystemExecTask provide the more efficient way for iterative development on a binary model exploration. In a collaborative process, we can have several platform such as Linux and Windows for example. For now, I use the following trick for providing a "portable" mole for exploration development:

executable = System.getProperty("os.name") == "Linux" ? "./popInit" : "popInit.exe"

Maybe, the SystemExecTask can offer a specific method for adding several binaries for several platform?