- gui.h, gui.c: plot sweep results with SDL_gfx - Makefile: added target-specific variables for SDL and SDL_gfx - atrf-path.c (main): invoke the GUI if the number of sweeps is zero
- Makefile (DIRS): added atrf-path - atrf-path/Makefile, atrf-path/atrf-path.c: new utility atrf-path to measure path characteristics (for now, TX-to-RX path attenuation) - atrf-path/plot: visualize path loss measurements