Stereo Sid 2.0.6 update

After a bunch of years, I am happy to announce StereoSID 2.0.6 is here to stay.
It spots a new sid_player example and some optimization on the I2C implementation.

MOS6581 SID Emulator Arduino Library with stereo capability
https://github.com/daitangio/sid-arduino-lib
1 forks.
13 stars.
1 open issues.
Recent commits:

Merge pull request #3 from per1234/keywords_txt-multiple-tabsUse a single tab field separator in keywords.txt, GitHub
Use a single tab field separator in keywords.txtEach field of keywords.txt is separated by a single true tab. When you use multiple tabs it causes the field to be interpreted as empty. On Arduino IDE 1.6.5 and newer an empty KEYWORD_TOKENTYPE causes the default editor.function.style highlighting to be used (as with KEYWORD2, KEYWORD3). On Arduino IDE 1.6.4 and older it causes the keyword to not be recognized for any special highlighting.Reference:https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification#keywords, GitHub
Better I2C slave exampleAdded sid_player project, Giovanni Giorgi
Typo fixes, Giovanni Giorgi
Stereo Demo effect, Giovanni Win10 Giorgi