Environment variable setting in domain.xml

[testn]

It would be nice if in domain.xml, we can provide the additional setting to environment variable. It's quite useful to set that since some java library depends on environment variable including some native libraries that refers to dll that refers to some other dll in which setting java.library.path is not enough. Currently, the only way you can set your own environment variable before spinning up the domain is to set it in asadmin.bat.