meson: options: Document the options

Re-order the project options and add documentation which will be
presented by 'meson configure'.

This produces the following extra information:

Project options:
  Option        Current Value Possible Values Description
  ------        ------------- --------------- -----------
  documentation true          [true, false]   Generate the project documentation
  tests         true          [true, false]   Compile and include the tests

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

0 files changed, 0 insertions, 0 deletions