Implemented program to plot ground truth in 2d
Added a function for setting GT of images in folder

GTFROMDIR is a function that uses ObtainGT and plotGT to read images
from a directory and saves a workspace with variables containing the
ground  truth for the images.
Function adds '/' to dir and only plots if GT obt.

Function needs ’/’ at the end of the directory

Only plots GT in image if it gets obtained.
Added feedback when obtaining gts
Added plot GT from dir

Plots the GTs from images in specified dir, with the GT saved as .mat
in the folder above
Changed function to output a struct array instead.
Merge pull request #2 from niclasborlin/gt2d

Gt2d