Problem: There is some inconsistent tabbing.

Fix it!

Problem: In several functions curl API calls are not "grouped"
together.  They are oddly called at different points in the
function even though it is not necessary.  This is likely due to
early development and cleanup was forgotten.

Group the curl API calls together so the code is a little cleaner.

Problem: The commands "stat", "on", "off", and "cycle" are hard coded
everywhere.  This isn't good programming practice.

Create macros CMD_STAT, CMD_ON, CMD_OFF, and CMD_CYCLE instead of
hard coding it everywhere.

Problem: As redfishpower gets more complex, testing of the actual
redfishpower co-process instead of the simulated one under t/simulators
will become important.

Add a test-mode into redfishpower via a --test-mode option.  The
test mode essentially disables all internal curl API calls so no
actual network communication is done.  All network calls are just
assumed to work immediately.  The power status of all hosts is
tracked after off/on/cycle calls are made.

Fixes chaos#131

Problem: Redfishpower now has a test mode, but it is not being
used.

Use it in t0029-redfish.t.

Problem: Redfishpower now has a --test-mode option, so the redfishpower
simulator is no longer needed.

Remove the redfishpower simulator from t/simulators.

Problem: The t0029-redfish.t test now uses the redfishpower
--test-mode option, not the redfishpower simulator.  This
requires 'make distcheck' to build redfishpower.

Set the DISTCHECK_CONFIGURE_FLAGS environment variable to
ensure distcheck builds redfishpower.