[FeatureRequest]: M575 F parameter missing from G-code help data (gcodes.json) #516

Is your feature request related to a problem? Please describe.

RRF 3.7.0-beta.2 added an F parameter to M575 to select the number of data bits and parity for a port in Device mode (see Duet3D/RepRapFirmware#1196). In the DWC code editor, hovering over an M575 command shows help for the P, B, C and S parameters, but nothing for F, so the new parameter is undocumented in the editor tooltips.

The help data comes from @duet3d/monacotokens, not from RRF, so the M575 entry there is out of date.

Describe the solution you propose.

Add an F parameter to the M575 entry in Duet3D/MonacoTokens, file src/gcodes/gcodes.json on branch v3.7-dev (the "code": "M575" entry currently lists only P, B, C and S).

Following the documented behaviour in the GCode dictionary (optional, supported in RRF 3.7.0-beta2 and later, only applied when the port is in Device mode):

{
	"letter": "F",
	"description": "Data bits and parity, Device mode only (RRF 3.7.0-beta2 and later)",
	"values": [
		{
			"value": "0",
			"description": "8 data bits, no parity (default)"
		},
		{
			"value": "1",
			"description": "8 data bits, even parity"
		},
		{
			"value": "2",
			"description": "8 data bits, odd parity"
		}
	]
}

Describe alternatives you've considered

None needed.

Provide any additional context or information.

To reproduce: in the DWC config editor on RRF 3.7.0-beta.2, hover over a line such as
M575 P3 B19200 S7 F1
Help appears for P, B, S and C, nothing for F.

MonacoTokens version checked: v3.7-dev branch.