DBC file generation for enum parameters with an offset

[davefiddes]

It seems that if an enum parameter is configured with an offset the DBC generation doesn't take this into account.

To replicate:

• map an enum parameter oic can add tx 0x3ff seldir 32 8 1.0 1
• export a DBC with oic can export --format dbc test.dbc
• Import the DBC into SavvyCAN
• With the inverter in neutral check the seldir value reported in SavvyCAN

Expected result:

• The seldir value is Neutral

The actual result:

• The seldir value is Reverse

[davefiddes]

Fixed in the 0.2.1 release. DBC files are now generated using whatever gain and offset have been applied to the parameter.