Implementation of OamLog v2.1.2

This release contains,

implementation of the individual services
BasicServices incorporated from npm package onf-core-model-ap-bs+2.1.2
Application pattern modules incorporated from npm package onf-core-model-ap+2.1.2
Functionalities supported in this release shall be find in this umbrella issue #377

What's Changed

support changes to v2.1.2_spec by @at00825957 in #379
Update response-body of /v1/regard-application by @at00825957 in #380
Code optimization in individualServices/RegardApplication.js by @at00825957 in #383
Forwarding should not be sent if it is unable to fetch the operation-name by @at00825957 in #386
fix the issue 390 by @ManasaBM1 in #391
Modify the implementation of callback PromptForBequeathingDataCausesTransferOfListOfApplications by @at00825957 in #389
Update version of onf-core-model-ap and onf-core-model-ap-bs 2.1.2 by @at00825957 in #392

Full Changelog: v2.1.2_spec...V2.1.2_impl