Basic256 is now at Beta02

* The project has now moved to Beta2 state, meaning it runs, but issues might still lie dormant in both program and documentation
* A Docusaurus website has been created to replace the old doc.basic256.org in the code and is activated via the menu-item Help/Online help or by pressing F1 over a keyword. It lives on https://uglymike17.github.io/Basic256-Docs and is also shown in the Help/About BASIC-256 menu-item.
* Polyphonic sound have been corrected
* A new Example program 'SoundStatementDemo.kbs' demonstrating the new SOUNDxxx statements has been added to the Examples/Sound_Speech directory
* A new Example program 'ImageStatementDemo.kbs' demonstrating the new IMAGExxx statements has been added to the Examples/Image directory
* The REF() command (passing arrays to subroutines by reference) has been corrected.
* The Edit and Output windows are now pinned to a white/light scheme so code and text stay readable on desktops using a dark OS theme (Ubuntu dark, iPhone/iPad, etc.).
* The project has been relicensed from GPL version 2 to GPL version 3 or later. The original GPLv2 headers all carried the "or (at your option) any later version" clause, which permits this upgrade; every original copyright holder and year has been preserved. license.txt now holds the full GPLv3 text. The bundled md5 (RSA Data Security) and LineNumberArea (Qt example, BSD) files keep their own compatible licenses.
* An Apple macOS for Intel build is now available. This requires macOS 15 (Sequoia)