fixed broadcast compare for ESP32

direct comparsion to IPAddress object was invalid with 3.1.0 / 1.12.4 of Espressif32 Platform

fixed send of long, real

• Variables of type long and real was not send correctly
• debug output improved
• socket receive examples updated (no crash if wrong variable amount in callback)

fixed architectures for arduino

[library] fixed architectures for arduino

documentation fixes

• updated the function documentation in header files
• updated examples

v0.0.2

added platform filters

v0.0.1

first public release