Modify main data structure which holds information from ioc.yaml

[adedamola-sode]

the "Entity" data structure needs to be refined to encompass the variable data types that will come from generic ioc.yamls, such as detectors, motors, sensors, e.t.c. This data structure needs to be able to be mapped to the required gui_map file.

[adedamola-sode]

@dataclass class Entry: type: str DESC: str | None P: str M: str | None R: str | None

Current Datastructure matching ioc_yaml file contents to gui_map.yaml contents, will need to be made more robust for all sorts of records

[adedamola-sode]

Issue worked on with commit #15 , under using the Entry dataclass