Added file system package (#2485)

## Checklist

- [/] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [/] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [/] I have not broken the cheatsheet

Author: AndreasArvidsson

packages/cursorless-vscode/package.json

@@ -1240,6 +1240,7 @@
   "dependencies": {
     "@cursorless/common": "workspace:*",
     "@cursorless/cursorless-engine": "workspace:*",
+    "@cursorless/file-system-common": "workspace:*",
     "@cursorless/vscode-common": "workspace:*",
     "immer": "^10.0.4",
     "itertools": "^2.2.5",

packages/cursorless-vscode/tsconfig.json

@@ -13,6 +13,9 @@
     {
       "path": "../cursorless-engine"
     },
+    {
+      "path": "../file-system-common"
+    },
     {
       "path": "../vscode-common"
     }

packages/file-system-common/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "@cursorless/file-system-common",
+  "version": "1.0.0",
+  "description": "Package containing common file system utilities",
+  "main": "./out/index.js",
+  "scripts": {
+    "compile:tsc": "tsc --build",
+    "compile:esbuild": "esbuild ./src/index.ts --sourcemap --format=esm --bundle --packages=external --outfile=./out/index.js",
+    "compile": "pnpm compile:tsc && pnpm compile:esbuild",
+    "watch:tsc": "pnpm compile:tsc --watch",
+    "watch:esbuild": "pnpm compile:esbuild --watch",
+    "watch": "pnpm run --filter @cursorless/file-system-common --parallel '/^watch:.*/'",
+    "clean": "rm -rf ./out tsconfig.tsbuildinfo ./dist ./build"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "MIT",
+  "type": "module",
+  "types": "./out/index.d.ts",
+  "exports": {
+    ".": {
+      "cursorless:bundler": "./src/index.ts",
+      "default": "./out/index.js"
+    }
+  },
+  "dependencies": {
+    "@cursorless/common": "workspace:*"
+  }
+}

packages/file-system-common/src/index.ts

@@ -0,0 +1,13 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "out"
+  },
+  "include": ["src/**/*.ts", "src/**/*.json", "../../typings/**/*.d.ts"],
+  "references": [
+    {
+      "path": "../common"
+    }
+  ]
+}

packages/file-system-common/tsconfig.json

@@ -26,6 +26,9 @@
     {
       "path": "./packages/cursorless-vscode-e2e"
     },
+    {
+      "path": "./packages/file-system-common"
+    },
     {
       "path": "./packages/meta-updater"
     },