peakrdl-regblock-vhdl: copy needed files under hdl-src to the specified path for the code generation

[rafaelnp]

Hello everybody,

Is there a reason for not copying the needed files included in the generated VHDL files(s)? Or is there already an option for that that ?

e.g. the generated file atxmega_spi.vhd on the line 8 contains the statement use work.reg_utils.all;. This file, reg_utils.vhd, can be found under <repo_root>/hdl-src.

[amykyta3]

Generally the philosophy has been to only output files that are distinct to the generated regblock. The intent is that for these common files, they would be copied once to satisfy the dependency. Outputting them each time for each regblock generated could risk creating duplicates within the same project, which is why I avoided making them part of the regblock command. The VHDL generator by @darsor is likely following similar thinking.