Traverse linkedRPC to find specific value based on blueprint annotation

[S-Eibl]

This issue should be able to extract a value from the data stored in a linkedRPC based on a path directing to that value provided by the blueprint to generate a TDs part. For example the blueprint for properties title:

"title": {
    "value_": "<rpcFunction.Comment.long-title>",
    "required_": true
},

The value_ provides the information where to find the desired value relative to the linkedRPC object. In this case this is in the rpcFunction search for the Comment and search in the Comment for a line annotated with long-title

Tasks

• A function has to be called on the linkedGrpc determining if this is a value that should be searched (surrounded with angle brackets) and seperate the path into parts
• A function that runs through the nodes
• This function needs predefined access possibilities to avoid panics
• A function to retrieve annotated lines for a specific annotation in comments