Adding simple FSK Rx Processor. Can be used with New Apps. (#2716)

* Work to allow for unique beacon parsing functions.

* Fixing pull.

* Changes.

* Formatting.

* Fix Copyright

* Update firmware/application/apps/ble_rx_app.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update firmware/baseband/proc_btlerx.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* PR suggestions.

* Fix String.

* FSK Rx Improvements. Works for my custom protocol.

* Fix buffer size.

* Refactor

* Formatting.

* Formatting.

* Fixing compiling, and BLE Rx UI/Performance.

* More improvements.

* Fixing stuck state.

* More stuck parsing fix.

* Combining PR changes.

* Improvements from previous PR.

* Fix dbM calculation relative to device RSSI.

* Formatting.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: TJ <tj.baginski@cognosos.com>

firmware/baseband/proc_btlerx.hpp

@@ -133,8 +133,6 @@ class BTLERxProcessor : public BasebandProcessor {
     uint8_t payload_len{0};
     uint8_t pdu_type{0};
     int32_t max_dB{0};
-    int8_t real{0};
-    int8_t imag{0};
     uint16_t packet_index{0};
     uint8_t bit_index{0};