01 GetVariableUsableData ****************
	calculates the usable data in   *
	ground truth and inertial or    *
	visual sensors, in order to     *
	treat only complete cycles of   *
	the experiment.                 *
02 GetImageData *************************
	calculates the visual data for  *
	both experiments, using         *
	different values for angle_tol, *
	saving them afterwards (this    *
	will allow to change the Kalman *
	Filter model at need, without   *
	having to calculate all visual  *
	data again, resulting in a      *
	saving of time.                 *
03 MergeData ****************************
	will create an error and add it *
	to the inertial data, while at  *
	the same time, will load visual *
	data and merge the both types   *
	together, resulting in four     *
	outputs for each value of       *
	angle_tol (exp1, exp2, exp1E,   *
	exp2E), where "E" represents    *
	artificial error.               *
04 Kalman Filter ************************
	will fed the "merged" data into *
	a KF, in order to analyze the   *
	measures of both sets of sensors*
	and extract the mean difference *
	between the output and the      *
	ground truth, which will be     *
	saved. Will also plot the       *
	results in order to have a more *
	visual conclusion on the        *
	influence of angle_tol          *
data ************************************
	contains the data from the      *
	experiments. It should be copied*
	to folders 02-03, in order to be*
	read by them.                   *
*****************************************