Added waveforms for Vandle

Added VandleWaveform and RuntimeWaveform classes to Structures.
VandleWaveform includes two pulse vectors (one for left and one for
right). Neither are implemented in their respective processors at
this time.

Updated LinkDef.h to include new waveforms.

Removed multiplicity from LiquidWaveform and TriggerWaveform. This
value is contained within the normal Liquid/Trigger branches.

Removed ALL Teeny Vandle code from VandleProcessor because it is
never used.

Added a 'default' directory inside the config directory. The 'setup'
symbolic link can link to this directory for fresh installs. Renamed
7Be.config (inside the ND_7Be configuration directory) to
default.config. This file will always be loaded when starting
PixieLDF without the config file argument.

Moved .config files into the experimental directory (map2.txt, cal.txt,
and so on). PixieLDF will now search this directory for default.config.

General cleaning of MapFile.hpp/cpp and ChanIdentifier.hpp/cpp.

Removed 'typedef int TagValue' inside ChanIdentifier.hpp in order
to make the code more readable. TagValue types have been changed
to normal int.

Removed Process from TriggerProcessor since it does nothing.

Processors and Analyzers now output information on CPU time usage
instead of the old weird time format. DetectorDriver will list
total real time usage when PixieLDF exits.
Updates to analyzer and viewer