build: add VSCode launch configuration to automatically build MPQ and

launch WoW

Pipeline:
1. tool/src/main.rs compiles MPQ and puts it at $WOW_HOME/Data
2. reload_wow.bat cleans cache and runs Wow.exe

TODO:
- rebuild all patches instead of only patch-ruRU-5.MPQ
- implement "smart rebuild". Do not create new archive if nothing was
  changed

.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Run WoW with MPQ",
+      "type": "node",
+      "request": "launch",
+      "runtimeExecutable": "powershell",
+      "args": [
+        "-ExecutionPolicy",
+        "Bypass",
+        "-File",
+        "${workspaceFolder}/run.ps1"
+      ]
+    }
+  ]
+}