Improve Terminal Output

Improved terminal display for crack profile
Tidy up of improved terminal Output

aDotc0 improved so that outputs are aligned
Start of gnuplot integration

gnuplot handler header included with scripts within main to plot test
graph, functions will slowly move to own source file
Not working
Revert "Not working"

This reverts commit b3710793dada9d6dc5a5b572b0c03aa18c96b093.
gnuplot V1.1

Further down the line, source file practically unused, need to decide
whether to use gnuplot class functions inside main or change method of
calling

gnuplotHandle.hpp altered to remove compile warnings
gnuplot displaying, not saving

Gnuplot refuses to produce a useable format. Not sure why

Control has been modified to allow gnuplot..
gnuplot save and window

gnuplot case member functions within main save and display functions
FDprofile terminal output modified

Crack and no crack output now come in similar format: include headers
Gnuplot changes
Main change (needs reverting)
Revert "Main change (needs reverting)"

This reverts commit 3b2c38ddfae6100e884efc0c1d217e2e8655b64d.
Displays and saves gnuplot for solution

Oddly needs two objects for this, displaying seems to corrupt the
save..
Gnuplot fully functional

Saves and displays plots with filename consisting of solution and crack
speed
First draft of fully functional gnuplot!!!!
Merge branch 'V2.3-gnuplot'
Modified axes captions