Support custom launch configurations

Added GDB and non-GDB Koto launching so I can stop using GNOME Builder.

.vscode/launch.json

@@ -0,0 +1,50 @@
+{
+	// Use IntelliSense to learn about possible attributes.
+	// Hover to view descriptions of existing attributes.
+	// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+	"version": "0.2.0",
+	"configurations": [
+		{
+			"name": "Launch (GDB)",
+			"type": "cppdbg",
+			"request": "launch",
+			"program": "${workspaceFolder}/builddir/src/com.github.joshstrobl.koto",
+			"args": [],
+			"stopAtEntry": false,
+			"cwd": "${workspaceFolder}",
+			"environment": [
+				{"name" : "G_MESSAGES_DEBUG", "value": "all" },
+				{ "name": "GTK_THEME", "value": "Default:dark" }
+			],
+			"externalConsole": false,
+			"MIMode": "gdb",
+			"setupCommands": [
+				{
+					"description": "Enable pretty-printing for gdb",
+					"text": "-enable-pretty-printing",
+					"ignoreFailures": true
+				}
+			],
+			"preLaunchTask": "Meson Configure and Build"
+		},
+		{
+			"name": "Launch",
+			"type": "cppdbg",
+			"request": "launch",
+			"program": "${workspaceFolder}/builddir/src/com.github.joshstrobl.koto",
+			"args": [],
+			"stopAtEntry": false,
+			"cwd": "${workspaceFolder}",
+			"environment": [
+				{"name" : "G_MESSAGES_DEBUG", "value": "all" },
+				{ "name": "GTK_THEME", "value": "Default:dark" }
+			],
+			"externalConsole": false,
+			"linux": {
+				"MIMode": "gdb",
+				"miDebuggerPath": ""
+			},
+			"preLaunchTask": "Meson Configure and Build"
+		},
+	]
+}

.vscode/tasks.json

@@ -13,6 +13,13 @@
 			],
 			"problemMatcher": []
 		},
+		{
+			"label": "Meson Configure and Build",
+			"type": "shell",
+			"command": "",
+			"dependsOrder": "sequence",
+			"dependsOn": ["Meson Configure", "Meson Compile"]
+		},
 		{
 			"label": "Meson Configure",
 			"type": "shell",