feat: added output management

[Venkatakrishnan774]

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Description

Output Management is a BTP shared service which has features like sending documents to external system in various channels like EDI/EMAIL/Print. As part of this, we are mainly concentrating on the email use case where one can send email via our framework along with attachments if necessary.

We are exposing capabilities via util methods of sending email as BTP destination based and via integrated MCP hub. When using the MCP Hub way, we are giving the capability to construct the required payload and invoke the util functions. When using the BTP destination way, we are giving the options to input the destination details and the payloads.

Related Issue

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