[Oberon] Modified Oberon-07 compiler adding the numeric CASE statement

[Andreas Pirklbauer]

A modified Oberon-07 compiler adding the numeric CASE statement to the language is available at;

   https://github.com/andreaspirklbauer/Oberon-numeric-case-statement

Note that this is a rather simple implementation containing no optimizations whatsoever, and which has not been stress-tested yet.

Any input is welcome...