Adds the basic kernel objects' documentation describing the function of
tasks, fiber and interrupt service routines.
Adds the nanokernel objects' docuementation describing the function of
the most important nanokernel objects.
Adds the microkernel objects' documentation describing the function of
the most important microkernel objects.
Changes the index.rst file to include the Object Documentation.
Change-Id: Ib35d973cc3575a7ecc32c4ab175e05cb298e3306
Signed-off-by: Rodrigo Caballero <rodrigo.caballero.abraham@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
