Refactor pushToConsole: for all LEDOS and support external printf

[ewowi]

Hi hpwit,

In order to catch compile errors in the UI I created this PR.

By this StarLight can show it like this, also if the board is not connected via USB :

It also makes your code simpler e.g.

#ifdef __CONSOLE_ESP32
  string _d = string_format("Creation of an %d bytes binary and %d bytes data", _instr_size, _size);
  LedOS.pushToConsole(_d);
#else
  printf("Creation of an %d bytes binary and %d bytes data\r\n", _instr_size, _size);
#endif

is now replaced by

pushToConsole("Creation of an %d bytes binary and %d bytes data\r\n", _instr_size, _size);