add ledger

package.json

@@ -17,6 +17,9 @@
     "@cosmjs/encoding": "^0.25.6",
     "@cosmjs/proto-signing": "^0.25.6",
     "@intlify/vue-i18n-loader": "^2.1.2",
+    "@ledgerhq/hw-app-cosmos": "^6.3.0",
+    "@ledgerhq/hw-transport-web-ble": "^6.3.0",
+    "@ledgerhq/hw-transport-webusb": "^6.3.0",
     "@vue/composition-api": "1.0.0-beta.22",
     "@vueuse/core": "4.0.0",
     "animate.css": "4.1.1",
@@ -31,6 +34,7 @@
     "dayjs": "^1.10.6",
     "echarts": "4.8.0",
     "leaflet": "1.6.0",
+    "ledger-cosmos-js": "2.1.8",
     "node-fetch": "^2.6.1",
     "portal-vue": "2.1.7",
     "postcss-rtl": "1.7.3",