send_gcode: print progress in percent

Author: henningjanssen

modt.py

@@ -77,7 +77,7 @@ def adler32_hash():
             end = min(gcode_len, ptr+blocksize)
             block = gcode[ptr:end]
             if print_progress:
-                print(f'# block: {ptr}-{end} of {gcode_len}, block-size: {len(block)}')
+                print(f'# progress: {100*ptr/gcode_len}%, block: {ptr}-{end} of {gcode_len}, block-size: {len(block)}')
             if print_blocks:
                 print(block)