ATtinySerialOut

• Support of all ports of ATtiny88 using ATTinyCore numbering scheme.
• Usage of ATTinyCore pin numbering also for ATtiny167.

Usage of ATTinyCore pin numbering scheme e.g. PIN_PB2 and therefore removed USE_PORTB_FOR_TX_PIN.

• Added compile guard.
• Added USE_PORTB_FOR_TX_PIN to allow TX pin on port B for ATtiny87/167.
• Improved #if guard for instance naming.

• Renamed ATtinySerialOut.cpp to ATtinySerialOut.hpp => TX pin can be defined in main program.
• Added symbol TINY_SERIAL_INHERIT_FROM_PRINT - if defined, you can use this class as a replacement for standard Serial as a print class.

• Cloned ATtinySerialOut.cpp as ATtinySerialOut.cpp.h for direct include.
• Added ATtiny88 support.

• Removed workaround #define __FlashStringHelper fstr_t for old Digispark core < 1.6.8 in order to work with core >= 1.7.0.
• ATtiny167 Support.
• Moved functions from to cpp file.

• Removed symbol TINY_SERIAL_INHERIT_FROM_PRINT and replaced by macro #define Print TinySerialOut
• Changed int to int16_t and long to int32_t.
• Use utoa() and ultoa() for uint16_t and uint32_t.

• Symbol TINY_SERIAL_INHERIT_FROM_PRINT - if defined, you can use this class as a replacement for standard Serial as a print class.
• improved all ...Hex() functions.
• define FlashStringHelper for digispark.
• changed label loop to txloop in write1Start8Data1StopNoParity() for 38400 baud.

• printHex() now using capital letters
• Improved OpenWindowAlarm example

• renamed example to be consistent