* Move minRssi in config_BT.h
Move var definitions next to compilation var definitions
* Introduce UseExtDecoder when is def MQTTDecodeTopic
Replace #ifdef MQTTDecodeTopic by #if UseExtDecoder
* Rename AttemptBLECOnnect to AttemptBLEConnect
* Create a struct (BTConfig_s) for BT configuration data
Create a default config for BTConfig_s (BTConfig_default) based on defines
Create a global variable (BTConfig) to hold live BT configuration data and initialize it
Move bleConnect to BTConfig
* Move BLEscanBeforeConnect in BTConfig
* Move BLEinterval in BTConfig
* Move PublishOnlySensors in BTConfig
* Move hassPresence in BTConfig
* Move minRssi into BTConfig
* Introduce presenceTopic into BTConfig
* Move MQTTDecodeTopic as extDecoderTopic into BTConfig
* Mutate UseExtDecoder as runtime var BTConfig.extDecoderTopic
* Remove ServicedataMinLength (unused)
Always declare AttemptBLEConnect & BLE_FILTER_CONNECTABLE
* Mutate BLE_FILTER_CONNECTABLE as runtime parameter BTConfig.filterConnectable
* Mutate pubKnownBLEServiceData as runtime var in BTConfig
Mutate pubUnknownBLEServiceData as runtime var in BTConfig
Mutate pubBLEManufacturerData as runtime var in BTConfig
Mutate pubUnknownBLEManufacturerData as runtime var in BTConfig
Mutate pubBLEServiceUUID as runtime var in BTConfig
* Mutate useBeaconUuidForTopic as runtime var in BTConfig
Mutate useBeaconUuidForPresence as runtime var in BTConfig
* Small optimization
* Formatting of config_BT
Co-authored-by: Florian <1technophile@users.noreply.github.com>
