Separate Documentation Tables for Constants, etc.

[jchang-endiag]

Is your feature request related to a problem? Please describe.
There currently does not appear to be a way to create separate tables for groups of constants. All constants are currently put into one table. This applies to signals, types, etc.

Describe the solution you'd like
It would be very useful to be able to create separate tables for each group of constants, etc., similar to how @virtualbus allows groupings of ports together.

Describe alternatives you've considered
I tried using @virtualbus on the off chance that it would work for constants, but it did not. I suppose it is possible to separate groups into different VHDL files, but this would require jumping to different files for groups of constants, etc. that should probably belong in single file.

Additional context
Example of VHDL with two groups of constants put into single constant table in documentation.

library ieee;
use ieee.std_logic_1164.all;



entity constant_tables is
end entity constant_tables;



architecture behavioral of constant_tables is

    --! Logic
    constant ZERO : std_logic := '0';               --! zero
    constant ONE  : std_logic := '1';               --! one

    --! Unknown
    constant UNKNOWN         : std_logic := 'U';    --! unknown
    constant DRIVING_UNKNOWN : std_logic := 'X';    --! driving unknown

begin
end architecture behavioral;