Add options to the StructurizrDslParser #256
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Related to #253
After digging a bit more into the parser, it seems that adding a property to the DSL to be able to force constant declaration uniqueness is not trivial. Indeed, since the parsing is purely linear and checks rules "just in time", I did not see a simple way to prevent overrides before actually parsing the property that would forbid them.
Hence, I made this PR as a suggestion to at least allow people who use the StructurizrDslParser API directly in code to parametrize this behavior via options passed to the parser on invocation.
The only option is to force unique constant declaration, in order to prevent constants override inside a workspace.
Even if there is only one option, I feel like creating a dedicated object that contains everything will be more extensible in the probable case where one would suggest more parametrization of the parser behavior.