Display inter-function dependencies

[odoodo]

Context
Mirth Migrator automatically detects and shows all directly or indirectly used functions of a channel:

This is however currently not the case for functions or code templates that use other functions.

Goal
Add support for automated detection an display of directly or indirectly used functions and code templates by other code templates and functions

Needed Action

• Basically just use the same routine (function getFunctionUsesFunctions()) that has been implemented for the function dependency detection of the channels. I might have to be slightly adapted to fit for both cases.
• Further, analog to the channel migration, an option for also migrating all referenced functions with the respective code template/function has to be added: