DOC: Return value for RawData.left and RawData.right

[minx]

Return value for RawData.left and RawData.right looks to have wrong information.

From what I read it should be:

Returns

• (RawData) the leftmost len bytes of this RawData

but it say:

Returns

• (integer) the leftmost len bytes of this RawData

https://wiki.actiona.tools/doku.php?id= ... wdata#left

https://wiki.actiona.tools/doku.php?id= ... data#right

.mid looks to be correct:

Returns

• (RawData) the new RawData

https://wiki.actiona.tools/doku.php?id= ... awdata#mid

Not entirely sure, so I have not modified the documentation.