XADC and DNA for Xilinx FPGA (#407)

* xilinx: add XADC and DNA args, see https://github.com/cfib/openFPGALoaderXADC/tree/XADC_3
parts: add xcku060
* doc: add xcku060

doc/FPGAs.yml

@@ -229,6 +229,7 @@ Xilinx:
     Model:
       - xcku035
       - xcku040
+      - xcku060
       - xcku115
     URL: https://www.xilinx.com/products/silicon-devices/fpga/kintex-ultrascale.html#productTable
     Memory: OK