Add lldbinit.py to the lldb launch command for VSCode (#6447)

This gives access to the `dump` command

.vscode/lldb_launch.json

@@ -10,6 +10,7 @@
       "debuggerRoot": "${workspaceFolder}",
       "initCommands": [
         "command script import external/+llvm_project+llvm-project/llvm/utils/lldbDataFormatters.py",
+        "command script import scripts/lldbinit.py",
         "settings append target.source-map \".\" \"${workspaceFolder}\"",
         "settings append target.source-map \"/proc/self/cwd\" \"${workspaceFolder}\"",
         "settings set escape-non-printables false",
@@ -33,6 +34,7 @@
       "debuggerRoot": "${workspaceFolder}",
       "initCommands": [
         "command script import external/+llvm_project+llvm-project/llvm/utils/lldbDataFormatters.py",
+        "command script import scripts/lldbinit.py",
         "settings append target.source-map \".\" \"${workspaceFolder}\"",
         "settings append target.source-map \"/proc/self/cwd\" \"${workspaceFolder}\"",
         "settings set escape-non-printables false",