Obfuscation tool is obfuscating DEFINES being used

[ygiladTT]

Take for example the following code:

assign next_state = state == `IDLE;

after obfuscation this would become something like this :

assign uDhy8fNtQRUnAfEqu7LnP3 = current_instr_type == `GBOk6VSLFrf;

however in our compilation scripts, we have specific DEFNED values which can't be consumed
please add an option to maintain define names