Added management sdk in contentstack core

Author: cs-raj

package-lock.json

@@ -40,6 +40,7 @@
     "@contentstack/cli-migration": "~1.11.0",
     "@contentstack/cli-utilities": "~1.17.2",
     "@contentstack/cli-variants": "~1.3.7",
+    "@contentstack/management": "~1.27.5",
     "@oclif/core": "^4.3.0",
     "@oclif/plugin-help": "^6.2.28",
     "@oclif/plugin-not-found": "^3.2.53",