PixelRadio v1.1.1

v1.1.1 changelog:
Restored HTTP API %20 char code for creating a blank RadioText Message (rtm) or a blank Program Service Name (psn).
Added more information to Controller Readme Docs.

This release includes v1.1.0, changelog as follows:
Updated espressif32 platform to 4.4.0, was 3.5.0. Core now 6.0.2, was 5.2.5
PlatformIO Package = framework-arduinoespressif32 3.20003.0 (2.0.3).
Updated ArduinoJson to 6.19.4, was 6.19.1
Updated LittleFS to 2.0.0 (built-in), was 1.0.6.
Changed platformio.ini board type to ttgo-t1, was esp32dev.
Added PTY (Program Type) command to HTTP, MQTT, and Serial Controllers (dkulp submission).
Added programmable Local Controller PTY code to Web UI (on Local RDS Tab).
Added RF Carrier On/Off to the Controller API.
Fixed 49 day System Run Time hang.
Fixed Web UI's displayed IP Address so it updates on reconnects.
Added test for broken QN8027 Oscillator (post failure to serial log).
Updated test tone routine for compatibility with latest espressif32 + removed blocking code.
Corrected millis var type (found some that were int32, must be uint32).
Added Percent (%) Decoding to HTTP API's URL.
Performed misc code cleanup.
Updated Readme documentation, added photos for external WiFi antenna modification.