Feature Request: Add some more configurable settings

[KoMa1978]

Hi everyone,

I really like this code and just implemented it for opening doors.
What I miss are some configurable settings and an option to set up a static HomeKit Code. I implemented it like shown below.
Since I'm not a software developer and not very experienced in Python (or Github) maybe someone else can comment and/or maybe integrate into the code.

What I did were the following "enhancements":

configuration.json

{
    "logging": {
        "level": 20
    },

    "nfc": {
        "path": "tty:usbserial-0001:pn532",
        "broadcast": true
    },

    "hap": {
        "port": 51926,
        "persist": "hap.state",
        "default": "locked",
        "throttle_polling": 0.25,
#--
        "pincode": "123-45-678",
        "lock-name": "NFC Lock",
        "info_manufacturer": "Manufacturer",
        "info_model": "Lock Model",
        "info_firmware_revision": "1.0",
        "info_serial_number": "1.2.3.4"
#--
    },

    "homekey": {
        "persist": "homekey.json",
        "express": true,
        "finish": "silver",
        "flow": "fast"
    }
}

And main.py:

def configure_hap_accessory(config: dict, homekey_service=None):
#--
    # driver = AccessoryDriver(port=config["port"], persist_file=config["persist"])
    driver = AccessoryDriver(port=config["port"], persist_file=config["persist"], pincode=bytes(config["pincode"], "utf-8"))
#--
    accessory = Lock(
        driver,
#--
        # "NFC Lock",
        f"{(config.get("lock-name") or "NFC Lock")}",
#--
        service=homekey_service,
        lock_state_at_startup=int(config.get("default") != "unlocked")
    )

#--
    accessory.set_info_service(
        manufacturer=f"{(config.get("info_manufacturer") or "Manufacturer")}",
        model=f"{(config.get("info_model") or "Model")}",
        firmware_revision=f"{(config.get("info_firmware_revision") or "0")}",
        serial_number=f"{(config.get("info_serial_number") or "0.0")}"
    )
#--

    driver.add_accessory(accessory=accessory)
    return driver, accessory

This displays more information in the Home App and allows the static configuration of a HomeKit pairing code.
Here fore example I was not able to catch if no variable "pincode" was configured in configuration.json.
Perhaps someone has an idea.