message: Infra: simplify and cleanup vscode configuration
  no need to specify common options now.
  fixed plugin/cli launch configurations to match test files.
  reordered so that "Mocha Current" is first/default.
diff: {
  "type": "node",
  "request": "launch",
  - "name": "Plugin Mocha Tests",
  + "name": "Mocha Current",
  "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
  - "args": [
  - "-r",
  - "@ts-tools/node/r",
  - "--timeout",
  - "999999",
  - "--colors",
  - "${workspaceFolder}/packages/webpack-plugin/test/**/**.spec.js"
  - ],
  + "args": ["${file}", "--timeout", "999999", ],
  "internalConsoleOptions": "openOnSessionStart"
  - },{
  + },
  + {
  "type": "node",
  "request": "launch",
  - "name": "Cli Mocha Tests",
  + "name": "Plugin Mocha Tests",
  "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
  - "cwd": "${workspaceFolder}/packages/cli",
  "args": [
  - "-r",
  - "@ts-tools/node/r",
  + "${workspaceFolder}/packages/webpack-plugin/test/**/**.spec.{ts,tsx}",
  "--timeout",
  - "999999",
  - "--colors",
  - "${workspaceFolder}/packages/cli/test/**/**.spec.ts"
  + "999999"
  ],
  "internalConsoleOptions": "openOnSessionStart"
  - },{
  + },
  + {
  "type": "node",
  "request": "launch",
  - "name": "Mocha Current",
  + "name": "CLI Mocha Tests",
  "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
  - "args": [
  - "-r",
  - "@ts-tools/node/r",
  - "--timeout",
  - "999999",
  - "--colors",
  - "${file}"
  - ],
  + "cwd": "${workspaceFolder}/packages/cli",
  + "args": ["${workspaceFolder}/packages/cli/test/**/**.spec.{ts,tsx}", "--timeout", "999999"],
  "internalConsoleOptions": "openOnSessionStart"
  }
  ]
  