first implementation
move files to right source directory
use named and default arguments and new tests
removed ByteBufferOption and start new testsuite
new structure

- use ByteBufferReader to read and ByteBufferWriter to write
- removed ByteBufferHandler
- new Option System
- new write test
small changes for read and write, position test
Merge branch 'dev' into feature-bytebuffer
new ByteConverter
integrate in FileAccess and new tests
writeAllLines and writeAllBytes in File
Merge branch 'dev' into feature-bytebuffer