Console Mode editions updated to version 0.47

[Richard Russell]

I have updated the BBC BASIC Console Mode editions (BBCTTY) to version 0.47: The main changes in this version are:

1. Global integer arrays are guaranteed to be 4-byte (DWORD) aligned; previously only LOCAL arrays were forcibly aligned.
   
   
2. The Raspberry Pi Pico edition now supports access to WiFi networking on the Pico W.
   
   
3. The mysqllib library and mysqldem example program are supplied with the Raspberry Pi Pico edition.

The new version can be downloaded from the usual place.