create datestamp on the fly during compilation

FPGA_by_Fredi/compile_date.bsf

@@ -0,0 +1,29 @@
+/*
+WARNING: Do NOT edit the input and output ports in this file in a text
+editor if you plan to continue editing the block that represents it in
+the Block Editor! File corruption is VERY likely to occur.
+*/
+/*
+Copyright (C) 1991-2014 Altera Corporation
+Your use of Altera Corporation's design tools, logic functions 
+and other software and tools, and its AMPP partner logic 
+functions, and any output files from any of the foregoing 
+(including device programming or simulation files), and any 
+associated documentation or information are expressly subject 
+to the terms and conditions of the Altera Program License 
+Subscription Agreement, Altera MegaCore Function License 
+Agreement, or other applicable license agreement, including, 
+without limitation, that your use is for the sole purpose of 
+programming logic devices manufactured by Altera and sold by 
+Altera or its authorized distributors.  Please refer to the 
+applicable agreement for further details.
+*/
+(header "symbol" (version "1.1"))
+(symbol
+	(rect 16 16 64 64)
+	(text "compile_date" (rect 5 0 56 12)(font "Arial" ))
+	(text "inst" (rect 8 32 20 44)(font "Arial" ))
+	(drawing
+		(rectangle (rect 16 16 32 32)(line_width 1))
+	)
+)