removed old Actel evalkit UG, added paper skeleton

There is a duplicate document, A2F_EVAL_KIT_UG.pdf.  Also added paper
skeleton (accidentally, but whatever).
added 2 app notes regarding interfacing with FPGA

on the SmartFusion
added document index file to smartfusion hwref dir
added four SmartFusion appnotes

added four SmartFusion appnodes: one on using the ACE with PDMA, one on
system power optimization and two on interrupting the MSS from the FPGA.
smartfusion 3 cameras code (only one camera works)

added the code for the smartfusion platform to control and capture from
3 cameras simultaneously, however, due to the size of the FIFOs, only
one can be reliably used at once.  the insight-serv code merely
duplicates the first camera's output twice.
added smartfusion verilog simulation guide doc