Generic cellular data representation library.
This library defines a trivial type used for streaming of tabular data using coinductive control structures such as pipes, conduit or iteratees with a guaranteed constant memory usage. In this structure, each cell of data is annotated with information about its relation to the following cell in the stream, namely end of cell, end of row and end of table conditions. In addition, in order to achieve truly-constant memory usage irrespective of individual cell size, we allow individual cells to be subdivided further into parts, as indicated by the end of part condition. Logically, this subdivision into parts is supposed to be purely operational and have no semantic significance, similarly to subdivision of lazy bytestrings into chunks.