transplant several overlays to s9_pynq board

reference:
kangyuzhe666/zynq7010-pynq-2.5

references:
overlay "adder" on xilinx forum
overlay "adder" transplant to PYNQ-Z2

• add overlay "base" 20201025
  User Manual
• add overlay "resizer" 20201025
  User Manual
  references:
  IP core
  DMA
  Block design
• add overlay "antminerGPIO" 20201026
  User Manual
  references:
  use gpio
  add gpio
  axi gpio
• add AD7606 demo 20201027
  merged to antminerGPIO
• add overlay "AD7606PLSPI" 20201031
  User Manual
  references:
  axi quad spi drivers for pynq