Support --load-modules option for simple_switch_grpc #720
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Since this is useful for many targets (simple_switch, simple_switch_grpc
and possibly psa_switch) and has been around for a while, I decided to
move support for --load-modules to the core bmv2 library, by adding a
new reference target-specific option parser
(
TargetParserBasicWithDynModules
) that targets can use directly. Thereason why this functionality did not find its way into the main bmv2
option parser is because it requires the target to be linked with
-rdynamic, so I believe it is better for the target to choose whether
this functionality is required or not. Not moving it to the main option
parser also guarantees backward-compatibility for simple_switch users.
Fixes #719