Round Float Values longer then 'Decimalplaces'

[nicolas-lang]

I just encountered a Problem with my GRBL & Universal-G-Code-Sender - Setup:

• my gcode had float values with 20 decimal places, resulting in lines longer then GRBL could handle, this made my Machining operation 'bad' without throwing a Error.
  It would be very helpfull if the G-Code-Sender had a Option to round the float values that are being sent to the GRBL setting of 'decimal-places' or maybe a fixed number of decimals.

I currently just use the following regex to cut exessive decimals:
match:
([xXyYzZfFiIjJ]{1})\s_([-]{0,1})\s_(\d+).(\d{0,4})\d+
replace by:
$1$2$3.$4


[winder]

I added this recently with commit be98878