Update build-release.yml

refactor: FillStruct() implemented to tidy up code readability

fix: hotfix the buttons logic

feat: implement discord buttons

This commit introduces buttons to the rich presences.
The JSON structure would be like this:
```"buttons": [
    {
        "label": "Global Button1",
        "url": "https://url"
    },
    {
        "label": "Global Button2",
        "url": "https://url"
    }
]```
The buttons array can contain 2 elements as a maximum.
Like other parameters, the buttons can be implemented globally and in each state.

refactor: custom radio callsigns json object

JSON element "custom" has been renamed to "custom_callsigns"
The value of this element was changed from array of objects
to a single object of indefinite amount of elements.
This object will hold two values:
1. the callsign, which can be a strict constant or a regex (element name)
2. the corresponding radio callsign (element value)

Example:
    "radio_callsigns": {
        "config": {
            "load_from_ese": false,
            "path_to_ese" : "..\\..\\"
        },
        "custom_callsigns": {
            "^HECC_CTR$": "Cairo Control Bandbox",
            "^HECC_(\\d+)(?:_)CTR$" : "Cairo Control ACC $0"
        }
    }

More work into ESE position loading.

+ Changes to JSON config structure

Utilize ESE parser to load radio callsigns

WIP

Update msbuild.yml: Fix another typo

Update msbuild.yml: typo

1.1.0 release