Added CNC mill and drill project configuration, scripts and examples

examples/CNC_mill_drill_from_KiCad/output/Step_Down_Carrier_Board-Edge_Cuts.gm1

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+%TF.GenerationSoftware,KiCad,Pcbnew,9.0.6-9.0.6~ubuntu24.04.1*%
+%TF.CreationDate,2025-11-30T16:17:35+01:00*%
+%TF.ProjectId,Step_Down_Carrier_Board,53746570-5f44-46f7-976e-5f4361727269,rev?*%
+%TF.SameCoordinates,Original*%
+%TF.FileFunction,Profile,NP*%
+%FSLAX46Y46*%
+G04 Gerber Fmt 4.6, Leading zero omitted, Abs format (unit mm)*
+G04 Created by KiCad (PCBNEW 9.0.6-9.0.6~ubuntu24.04.1) date 2025-11-30 16:17:35*
+%MOMM*%
+%LPD*%
+G01*
+G04 APERTURE LIST*
+%TA.AperFunction,Profile*%
+%ADD10C,0.100000*%
+%TD*%
+G04 APERTURE END LIST*
+D10*
+X0Y0D02*
+X45082679Y0D01*
+X45082679Y-45142681D02*
+X0Y-45142681D01*
+X45082679Y0D02*
+X45082679Y-45142681D01*
+X0Y-45142681D02*
+X0Y0D01*
+M02*

examples/CNC_mill_drill_from_KiCad/output/Step_Down_Carrier_Board-job.gbrjob

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+{
+  "Header": {
+    "GenerationSoftware": {
+      "Vendor": "KiCad",
+      "Application": "Pcbnew",
+      "Version": "9.0.6-9.0.6~ubuntu24.04.1"
+    },
+    "CreationDate": "2025-11-30T16:17:35+01:00"
+  },
+  "GeneralSpecs": {
+    "ProjectId": {
+      "Name": "Step_Down_Carrier_Board",
+      "GUID": "53746570-5f44-46f7-976e-5f4361727269",
+      "Revision": "rev?"
+    },
+    "Size": {
+      "X": 45.1827,
+      "Y": 45.2427
+    },
+    "LayerNumber": 2,
+    "BoardThickness": 1.6,
+    "Finish": "None"
+  },
+  "DesignRules": [
+    {
+      "Layers": "Outer",
+      "PadToPad": 0.2,
+      "PadToTrack": 0.2,
+      "TrackToTrack": 0.2,
+      "MinLineWidth": 0.7,
+      "TrackToRegion": 1.0,
+      "RegionToRegion": 1.0
+    }
+  ],
+  "FilesAttributes": [
+    {
+      "Path": "Step_Down_Carrier_Board-Edge_Cuts.gm1",
+      "FileFunction": "Profile",
+      "FilePolarity": "Positive"
+    }
+  ],
+  "MaterialStackup": [
+    {
+      "Type": "Legend",
+      "Name": "Top Silk Screen"
+    },
+    {
+      "Type": "SolderPaste",
+      "Name": "Top Solder Paste"
+    },
+    {
+      "Type": "SolderMask",
+      "Thickness": 0.01,
+      "Name": "Top Solder Mask"
+    },
+    {
+      "Type": "Copper",
+      "Thickness": 0.035,
+      "Name": "F.Cu"
+    },
+    {
+      "Type": "Dielectric",
+      "Thickness": 1.51,
+      "Material": "FR4",
+      "Name": "F.Cu/B.Cu",
+      "Notes": "Type: dielectric layer 1 (from F.Cu to B.Cu)"
+    },
+    {
+      "Type": "Copper",
+      "Thickness": 0.035,
+      "Name": "B.Cu"
+    },
+    {
+      "Type": "SolderMask",
+      "Thickness": 0.01,
+      "Name": "Bottom Solder Mask"
+    },
+    {
+      "Type": "SolderPaste",
+      "Name": "Bottom Solder Paste"
+    },
+    {
+      "Type": "Legend",
+      "Name": "Bottom Silk Screen"
+    }
+  ]
+}

examples/CNC_mill_drill_from_KiCad/output/Step_Down_Carrier_Board.drl

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+M48
+; DRILL file {KiCad 9.0.6-9.0.6~ubuntu24.04.1} date 2025-11-30T16:17:35+0100
+; FORMAT={-:-/ absolute / metric / decimal}
+; #@! TF.CreationDate,2025-11-30T16:17:35+01:00
+; #@! TF.GenerationSoftware,Kicad,Pcbnew,9.0.6-9.0.6~ubuntu24.04.1
+; #@! TF.FileFunction,MixedPlating,1,2
+FMAT,2
+METRIC
+; #@! TA.AperFunction,Plated,PTH,ComponentDrill
+T1C0.400
+; #@! TA.AperFunction,Plated,PTH,ComponentDrill
+T2C1.000
+; #@! TA.AperFunction,NonPlated,NPTH,ComponentDrill
+T3C3.200
+%
+G90
+G05
+T1
+X3.003Y-22.338
+X3.003Y-34.588
+X42.003Y-22.338
+X42.003Y-34.588
+T2
+X4.003Y-10.963
+X6.503Y-10.963
+X28.503Y-10.963
+X31.003Y-10.963
+X38.003Y-10.963
+X40.503Y-10.963
+T3
+X3.603Y-41.463
+X3.703Y-3.663
+X41.403Y-3.563
+X41.403Y-41.463
+M30