Fix ESP chashes issue

Add ISR_PREFIX as ICACHE_RAM_ATTR like LoRa.cpp
Move all code to the main loop function.

1.0.4: Add setPinsSPI

Add setPinsSPI function to help config SPI on ESP32 patform.

1.0.3: Change callback

Change onMessage callback to loop
Add onSleep callback to loop
Remove isSleep
Fix examples
Add 'delay' onMessage callback to fix no receive data

1.0.2

Fix other config

1.0.1: Add ESP32

Add Example ESP32
Change ESP8266 id
Change ESP32 id

1.0.0

Initial