The current state of the running application instance.
The possible values are running(1), runnable(2) but waiting
for a resource such as CPU, waiting(3) for an event,
exiting(4), or other(5). This value is based on an evaluation
of the running elements of this application instance (see
sysApplElmRunState) and their Roles as defined by
sysApplInstallElmtRole. An agent implementation may
detect that an application instance is in the process of
exiting if one or more of its REQUIRED elements are no
longer running. Most agent implementations will wait until
a second internal poll has been completed to give the
system time to start REQUIRED elements before marking the
application instance as exiting.