add "newlineOn" and "newlineOff" methods

[whyameye]

Here's a simple addition following the model of the existing code to add the ability to turn on our off newlines at the end of the debug statements. Addresses issue #17

[github-actions]

Memory usage change @ 270c73e

Board	flash	%	RAM for global variables	%
arduino:avr:leonardo	🔺 +12 - +16	+0.04 - +0.06	🔺 +1 - +1	+0.04 - +0.04
arduino:avr:mega	🔺 +12 - +16	0.0 - +0.01	🔺 +1 - +1	+0.01 - +0.01
arduino:avr:nano	🔺 +12 - +16	+0.04 - +0.05	🔺 +1 - +1	+0.05 - +0.05
arduino:mbed_nano:nano33ble	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:mbed_nano:nanorp2040connect	🔺 +14 - +14	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:mbed_portenta:envie_m4	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:mbed_portenta:envie_m7	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:megaavr:nona4809	🔺 +12 - +16	+0.02 - +0.03	🔺 +1 - +1	+0.02 - +0.02
arduino:sam:arduino_due_x_dbg	🔺 +8 - +8	0.0 - 0.0	N/A	N/A
arduino:samd:mkrzero	🔺 +16 - +16	+0.01 - +0.01	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/Arduino_Debug_Basic flash	%	examples/Arduino_Debug_Basic RAM for global variables	%	examples/Arduino_Debug_Advance flash	%	examples/Arduino_Debug_Advance RAM for global variables	%
arduino:avr:leonardo	16	0.06	1	0.04	12	0.04	1	0.04
arduino:avr:mega	16	0.01	1	0.01	12	0.0	1	0.01
arduino:avr:nano	16	0.05	1	0.05	12	0.04	1	0.05
arduino:mbed_nano:nano33ble	0	0.0	0	0.0
arduino:mbed_nano:nanorp2040connect	14	0.0	0	0.0
arduino:mbed_portenta:envie_m4	0	0.0	0	0.0
arduino:mbed_portenta:envie_m7	0	0.0	0	0.0
arduino:megaavr:nona4809	16	0.03	1	0.02	12	0.02	1	0.02
arduino:sam:arduino_due_x_dbg	8	0.0	N/A	N/A
arduino:samd:mkrzero	16	0.01	0	0.0

Click for full report CSV

Board,examples/Arduino_Debug_Basic<br>flash,%,examples/Arduino_Debug_Basic<br>RAM for global variables,%,examples/Arduino_Debug_Advance<br>flash,%,examples/Arduino_Debug_Advance<br>RAM for global variables,%
arduino:avr:leonardo,16,0.06,1,0.04,12,0.04,1,0.04
arduino:avr:mega,16,0.01,1,0.01,12,0.0,1,0.01
arduino:avr:nano,16,0.05,1,0.05,12,0.04,1,0.05
arduino:mbed_nano:nano33ble,0,0.0,0,0.0,,,,
arduino:mbed_nano:nanorp2040connect,14,0.0,0,0.0,,,,
arduino:mbed_portenta:envie_m4,0,0.0,0,0.0,,,,
arduino:mbed_portenta:envie_m7,0,0.0,0,0.0,,,,
arduino:megaavr:nona4809,16,0.03,1,0.02,12,0.02,1,0.02
arduino:sam:arduino_due_x_dbg,8,0.0,N/A,N/A,,,,
arduino:samd:mkrzero,16,0.01,0,0.0,,,,

[aentinger]

Superb PR 🚀 Thank you @whyameye 🙇 .