[Devportal DS] Implementing API Key Flow for Application in Devportal

[CrowleyRajapakse]

Description: Need to implement API Key generation for Application in Devportal.

Users should be able to generate API Key and invoke the API

Tasks

• [x] Generate Token
• [x] Invoke API
• [x] Add unit Tests

[CrowleyRajapakse]

Generated Token: eyJhbGciOiJSUzI1NiIsICJ0eXAiOiJKV1QiLCAia2lkIjoiZ2F0ZXdheV9jZXJ0aWZpY2F0ZV9hbGlhcyJ9.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.S2j-QAW9leZALHkN5lam7yMwk6DxjuVB8mPrFFMmPrRqXNESnWrDlsI2miJYCCf0Q8ld6FmTlHKJNQLOJ0ezenjwZQSsVpJI2RgqdEtUrX8fYRc3-LTJC_NeXgEmDDzeGEhYV97YgVKRxpyuwoBVonTzdmq2Pu27aegZWjqnpGc29Ajm2vBhVu3zfwPlMkxZHEkCabAmN92xPfCgsPjohUvKroiqPDYuey40nzmAJydBcEetbuxtixIo8yxewcAM-fKMuuCULhNdwGS4aoGpgKDpHISwF59CirHw5V12UuibbhmusKdD1oSWY_MRDyLXps60tn1iwWpKqNkOYrOzyQ