Continued with jcore: (refacturing)

Continued with jcore: (refacturing)
- Added Apache commons jar
- Added missing license files
- getValueFromColumn() and setValueFromColumn() are now moved to Storeable (that they are in BaseFrameworkSystem and then needs to be overwritten again was bad OOP-ed style anyway).
- Also for this work, the type-hint for (mostly) instance must be changed to Storeable
- Added new exception CorruptedDatabaseFileException. This is thrown when the file is damaged
- Removed CorruptedDatabaseFileException() as StoreableCsv is now removed, too
-
Signed-off-by:Roland Häder <roland@mxchange.org>