Bugfixes end extensions

This version fixes several problems with capturing the debug output especially on ESP32.
Now string parameters can be also of type String and F("...").
The example now compiles also with PlatformIO / Visual Studio Code.

Trigger for platformio

Changed to v1.3 to fix a platformio update problem.

Bugfix and new features

Fixed several issues, i.e. library and example works with actual packages for ESP8266 and ESP32 in station and AP mode. Added a rudimentary implementation of the telnet NVT protocol and a stream filter function.

Completly revised version, added ESP32 support.

This version is improved by many new functions. By implementing an own buffer management the RingBuffer extenstion is no longer neccessary. Now the buffer size can be changed also at runtime. The global object SerialAndTelnet was removed. Now you have to define it in your sketch, but now it is possible to use more than one instance of TelnetSpy (with different port numbers) and you can create the TelnetSpy object(s) dynamically when you need them. Read the README.md for all new features.

First release

This is the first official release. Please report bugs and improvements.