Put note in gcode if min layer time has been applied.

[rburema]

Will help with finding issues, debugging, and pointing out (the reason behind) unintuitive results to users, caused by the minimum layer time feature ('cool_min_layer_time').

[github-actions[bot]]

Unit Test Results

26 tests  ±0   26 :heavy_check_mark: ±0   6s :stopwatch: ±0s   1 suites ±0     0 :zzz: ±0    1 files   ±0     0 :x: ±0 

Results for commit 8bfe361f. ± Comparison against base commit 6a47349e.

:recycle: This comment has been updated with latest results.