adds snapmaker original devices per issue #195

src/kiri-dev/cam/Snapmaker.Original

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+{
+    "file-ext": "gcode",
+    "token-space": " ",
+    "strip-comments": true,
+    "pre":[
+        "G21 ; set units to MM (required)",
+        "G90 ; absolute position mode (required)"
+    ],
+    "post":[
+        "M5  ; complete moves, stop spindle",
+        "M30 ; program end"
+    ],
+    "tool-change":[],
+    "dwell":[
+        "G4 P{time} ; dwell for {time}ms"
+    ],
+    "spindle":[
+        "M3 P{spindle} ; uniquely uses percentage not RPM"
+    ],
+    "settings": {
+        "origin_center": false,
+        "bed_width": 90,
+        "bed_depth": 90,
+        "build_height": 50,
+        "spindle_max": 100
+    }
+}

src/kiri-dev/fdm/Snapmaker.Original

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+{
+    "pre":[
+        "M117 Heating                 ; announce heating",
+        "M107                         ; turn off filament cooling fan",
+        "M104 S{temp} T0              ; set extruder temperature",
+        "M140 S{bed_temp} T0          ; set bed temperature",
+        "G90                          ; set absolute positioning mode",
+        "M83                          ; set relative positioning for extruder",
+        "G28                          ; home axes",
+        "G1 F3000                     ; set default move speed",
+        "M190 S{bed_temp} T0          ; wait for bed to reach target temp",
+        "M109 S{temp} T0              ; wait for extruder to reach target temp",
+        "M117 Purge                   ; announce purge",
+        "G92 E0                       ; set extruder position to 0",
+        "M117 Start Print             ; announce start of print"
+    ],
+    "post":[
+        "M117 Done           ; announce done",
+        "M107                ; turn off filament cooling fan",
+        "M104 S0 T0          ; turn off extruder",
+        "M140 S0 T0          ; turn off bed",
+        "G91                 ; relative movement",
+        "G1 Z2 F1200         ; drop bed 2mm",
+        "G90                 ; absolute positioning",
+        "G28 X0 Y0           ; home XY axes",
+        "M84                 ; disable stepper motors"
+    ],
+    "cmd":{
+        "fan_power": "M106 S{fan_speed}",
+        "progress": "M117 {progress}% layer {layer} / {layers}"
+    },
+    "settings":{
+        "origin_center": false,
+        "bed_width": 125,
+        "bed_depth": 125,
+        "build_height": 125
+    }
+}

src/kiri-dev/laser/Snapmaker.Original

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+{
+    "file-ext": "gcode",
+    "token-space": " ",
+    "pre":[
+        "G90            ; absolute positioning",
+        "G21            ; metric units",
+        "M106 P0 S255   ; fan on",
+        "M3 P100 S255   ; set default laser power",
+        "M5             ; laser off",
+        "G0 F3000       ; default feed rates",
+        "G1 F800        ; default feed rates"
+    ],
+    "post":[
+        "M5             ; laser off",
+        "M107 P0        ; fan off",
+        "G91            ; relative positioning",
+        "G0 Z0 F150     ; raise laser",
+        "G90            ; absolute positioning"
+    ],
+    "laser-on":[
+        "M3"
+    ],
+    "laser-off":[
+        "M5"
+    ],
+    "settings": {
+        "origin_center": false,
+        "bed_width": 125,
+        "bed_depth": 125
+    },
+    "profiles":[{
+        "processName": "Snapmaker Laser",
+        "outputOriginCenter": false
+    }]
+}