public function sdr_any_bc_subresolution(attribute) result(any_subres)
Returns if any bc attribute has the subresolution option set.
The subresolution option only plays a role for boundary objects and only
for those with a specific color (not none). This routine iterates over all
boundary definitions and checks the subresolution flag. If any flag is
true, the result of the function will be true.
Only colors, which do have a corresponding seed are considered here.
Note, that the subresolution flag will only be set for specific colors,
thus, we do not need to check for 'none' colors here separately.
Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
implementation in a submodule of an interface in a parent module.