implement byteRow as a class

[noah1510]

Add a new classes similar to the byteBlock but for a row for the same reasons.

• create byteRow class that simply replaces the current array
• replace or add new functions with byteRow as return type
• implement it to have index 0 as top row of a segment dropped in favor of compatibility

the old functions will be removed in version 2.2.0 and will be marked as deprecated as of version 2.0.0

[noah1510]

ByteBlock now inherits from ByteRow since the ByteBlock is essentially just a ByteRow with length 8.

[noah1510]

now only more documentation is missing but that is #11