Added capability to plot meshlines
Removed unused variable
Updated users guide for meshline plotting
Added commented-out example of meshline plotting
Added support for setting the color of a meshlines plot overlay
Updated plot documentation for colored meshlines
Merge branch 'develop' into plot_meshlines
Added support for other slice orientations
Switched to pointer for plot mesh
Merge branch 'develop' into plot_meshlines
Added support for plotting ufs, entropy, and cmfd meshes
Allowed read_tallies_xml to run in plotting mode, only to read mesh info
Updates documentation for meshline plotting
Clarified documentation
Tidied up select case
Added intent
Merge branch 'develop' into plot_meshlines

Conflicts:
	docs/source/usersguide/input.rst
Fixed entropy mesh width calculation
Added missing ampersand
Updated rnc file for meshlines plot xml changes