example for a blackbox without valuesAt and without isZero
added initial documentation and fixed some issues.
fixed some issues.
Merge branch 'blackbox' into blackboxNeedsReview
Merge branch 'documentation' into blackboxNeedsReview
fixed examples
alte Beispiele
resolved conflict
resolved conflicts
updated BB log level and testFFexperiments.m2
Merge branch 'blackbox' into blackboxNeedsReview
updated documentation and example