POST_Create Token Endpoint

For token endpoint creation using V3 API call:

1. First run the v3 token call as described on https://support.mashery.com/docs/read/mashery_api/30/Authentication.
2. After getting a successfull V3 token, fetch the token in the following call in order to create token endpoints using Mashery V3 API: 

curl -i -k 'https://api.mashery.com/v3/rest/services/{servicekey}/endpoints' -H 'Authorization: Bearer <tokenvalue>' -H 'Content-Type: application/json' -H 'cache-control: no-cache' -d '{"inboundSslRequired":false,"name":"v3-token-ep","outboundRequestTargetPath":"","publicDomains":[{"address":"demo3.api.mashery.com"}],"requestPathAlias":"/v3/token","systemDomains":[],"trafficManagerDomain":"demo3.api.mashery.com","type":"token","httpsClientProfile":{}}'