Add Marlin firmware. Has initial configuration for CoreXY and 1 servo.

Update CAD file with improved clearances for Pilot G2 cartridge clearances after first print.

Marlin Firmware/buildroot/share/sublime/MarlinFirmware.sublime-project

@@ -0,0 +1,35 @@
+{
+	"folders":
+	[
+		{
+			"folder_exclude_patterns":
+			[
+				".pio*",
+				"MarlinFirmware/lib",
+				"Marlin/lib",
+				"datatmp",
+				".vscode"
+			],
+			"binary_file_patterns":
+			[ "*.psd", "*.png", "*.jpg", "*.jpeg", "*.bdf", "*.patch", "avrdude_5.*", "*.svg", "*.bin", "*.woff" ],
+			"file_exclude_patterns":
+			[
+				"Marlin/platformio.ini",
+				"Marlin/.travis.yml",
+				"Marlin/.gitignore",
+				"Marlin/*/platformio.ini",
+				"Marlin/*/.travis.yml",
+				"Marlin/*/.gitignore",
+				"*.d"
+			],
+			"path": "../../.."
+		}
+	],
+	"settings":
+	{
+		"ensure_newline_at_eof_on_save": true,
+		"tab_size": 2,
+		"translate_tabs_to_spaces": true,
+		"trim_trailing_white_space_on_save": true
+	}
+}