Split Ledger (& transports) into package (#399)

* Split Ledger (& transports) into package

* Fix browser/node resolution

* Bump

packages/ledger-transports/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "@polkadot/ledger-transports",
+  "version": "0.62.2-4",
+  "repository": "https://github.com/polkadot-js/ui.git",
+  "author": "Jaco Greeff <jacogr@gmail.com>",
+  "maintainers": [
+    "Jaco Greeff <jacogr@gmail.com>"
+  ],
+  "contributors": [],
+  "license": "Apache-2.0",
+  "main": "node.js",
+  "browser": "browser.js",
+  "react-native": "react-native.js",
+  "dependencies": {
+    "@babel/runtime": "^7.12.5",
+    "@ledgerhq/hw-transport-webusb": "^5.28.0"
+  },
+  "devDependencies": {
+    "@polkadot/types": "^2.6.2-4",
+    "@types/ledgerhq__hw-transport-node-hid": "^4.22.2",
+    "@types/ledgerhq__hw-transport-webusb": "^4.70.1"
+  },
+  "optionalDependencies": {
+    "@ledgerhq/hw-transport-node-hid": "^5.28.0"
+  }
+}