Stream chapter design

[PetroBondar]

Currently, the "IO" chapter looks like this:

We propose to rename this chapter to "Streams" or "IO streams" and implement the next structure:

• Streams
  • sycl::stream (4.16. Stream class except Table 159)
  • sycl::stream_manipulator (Table 159 and all relevant information)

PR with updates will be created soon. Feel free to comment if you have any suggestions on the structure.

[PetroBondar]

Created PR: #125