feat(core): Update TypeORM to 0.2.18, compatible with sql.js 1.0

Also updated a couple of other deps to work with Node v12

packages/core/package.json

@@ -42,7 +42,7 @@
     "@nestjs/typeorm": "^6.0.0",
     "@vendure/common": "^0.1.2-beta.3",
     "apollo-server-express": "^2.4.0",
-    "bcrypt": "^3.0.3",
+    "bcrypt": "^3.0.6",
     "body-parser": "^1.18.3",
     "chalk": "^2.4.2",
     "commander": "^2.19.0",
@@ -66,7 +66,7 @@
     "progress": "^2.0.3",
     "reflect-metadata": "^0.1.12",
     "rxjs": "^6.3.3",
-    "typeorm": "0.2.15"
+    "typeorm": "0.2.18"
   },
   "devDependencies": {
     "@types/bcrypt": "^3.0.0",
@@ -90,7 +90,7 @@
     "graphql-request": "^1.8.2",
     "gulp": "^4.0.0",
     "mysql": "^2.16.0",
-    "node-libcurl": "^1.3.3",
+    "node-libcurl": "^2.0.0",
     "pg": "^7.8.0",
     "rimraf": "^2.6.3",
     "sql.js": "^0.5.0",