feat(mixin): enable multi tenant support (#103)

* feat(mixin): provision to support multi tenant app

provision to support multi tenant app

BREAKING CHANGE:
yes

gh-1942

* feat(mixin): update core version

update core version

BREAKING CHANGE:
yes

gh-1942

Author: Tyagi-Sunny

package-lock.json

@@ -60,7 +60,9 @@
     "@loopback/boot": "^7.0.0",
     "@loopback/core": "^6.0.0",
     "@loopback/repository": "^7.0.0",
+    "@loopback/rest": "^14.0.0",
     "@loopback/sequelize": "^0.6.0",
+    "@sourceloop/core": "^13.1.0",
     "jsdom": "^20.0.3",
     "lodash": "^4.17.21",
     "tslib": "^2.0.0"