m0 debugger processes every 2nd input

[Joseph-Jacobson]

Describe the bug
When I am in debug mode on the following blePrototype-example I have to put in two characters for the emotibit to process the commands. Both characters get processed, and they do not have to be in the same line, so they can be two seperate lines of single char commands and it processes both after receiving the second.

Note: when reverting to the current firmware version I noticed that there was a previous bug on the debugger where we wouldn't be able to send in debug commands due to a seperate bug that has since been fixed.

Expected behavior
Expected behavior would be each command running after each char, no buffering.
Additional details

• EmotiBit software version:
• EmotiBit firmware version: 1.14.3
• EmotiBit hardware version:
• OS version:

To Reproduce
Steps to reproduce the behavior:

1. Pull the following bluetooth branches:
   Featherwing: https://github.com/EmotiBit/EmotiBit_FeatherWing/tree/feat-blePrototype-Example
   Xplat (recently merged): https://github.com/EmotiBit/EmotiBit_XPlat_Utils

2. Upload firmware to m0

3. Enter debug mode

4. Enter any debug commands as per normally, and notice how it only processes them on the second input
   Screenshots
   If applicable, add screenshots to help explain your problem.

[Joseph-Jacobson]

With further debugging, this only happens on the m0 if "No Line Ending" is chosen in arduino

[Joseph-Jacobson]

Problem identified: Serial.peek on 1680 doesn't consume the character on the m0. Working on a fix by moving the #ifdef that was on 1682 to 1679, however that leads to the else block with the FTP serveer error message on m0 always running.