MIR Central Test Node DICOM Software Code

Modified simple_storage to take -b flag. -b 1 now tells simple_storage to
accept transfer syntaxes from a pre-compiled list. That means we don't need
to grab this from a file.
Added -Y switch to send_image. This is a shortcut for -X. This tells
send_image to propose 3 transfer syntaxes, the 3 non-compression ones.

Add Dose SR object and then several others. This was precipitated
by storing Dose SR.

Pop the error stack after we process each file. Keep the stack from growing.

When dumping error, it is not an error if the attribute is not found.
That just means it did not exist, so removing is not an error.

Remove the calls to clean the message stack.
If we cannot open the file, we eventually want to see the messages.

Comment out another call to dump the call stack.
We probably don't need to see it.

Modify the debug messages to only print when in verbose mode.
Makes things easier for the MESA scripts/tests that don't need
that extra text output.

If we fail to open the file in CTN mode, only print an error
message if we are in verbose mode.
Otherwise, this is just an annoying warning.

Add -c switch to allow us to specify the VR for things that
are DCM_CTX in our dictionary. This lets the user determine
if the type should be SS or US.

Add -c switch that allows us to specify the VR type for
context sensitive values.