As part of cpp migration, port all c files to cpp for all tasks

[rsarwad]

As part of cpp migration, port all c files to cpp for all tasks

Your Environment

• **Version
• **Affected Component: Access Gateway
• **Affected Subcomponent: MME service
• **Deployment Environment: Vagrant (AGW)

Describe the Issue

As part of cpp migration, port all c files to cpp for all tasks (mme_app, nas, spgw, sgw_s8), so that all tasks can use the c++ provided features

Expected behavior
AGW should work with current state

[stale]

This issue or pull request has been automatically marked as stale because it has not had any recent activity. It will be closed if no further activity occurs in the next 14 days.

[stale]

This issue or pull request has exceeded its lifecylce and was automatically closed. Should you wish to continue working on this, please reopen it.