Added Intensity-grid calculation at several angles for transit (by J. Blecic). argum.c: added ray-grid CLA; added parser routune.  transit.c: inserted loop to calculate eclipse emergent intensity for each angle.  Moved freemem lines (from observable).  observable.c: moved freemem lines out to transit.  eclipse.c: added angle argument to totaltau_eclipse to calculate inclined ray paths (cos(angle)).  Added intens_grid function to allocate 2D array for intensity grid. Added angle argument to tau_eclipse. In the function emergent_intens the intensity grid array is filled. Added flux function to calculate surface flux (distance to
the observer is incorporated in the output converter). Added printintens and printflux functions to print intensities and flux to output file. Added functions to free memory.  In structure_tr.h declared angles and number of angles in transithint structure; angle index, Flux and intensity grid structure are declared in transit structure and a new structure grid is made.  In flags_tr.h a new flag that defines progress indicator for intensity grid calculation is added.  In proto_eclipse.h new functions made in eclipse.c are added.  In proto_argum.c the new function made in argum.c is added.  In configuration file new parameter ray-grid that defines intensity grid is added.