64 Driver Parser

[epii-1]

driver.js generation should now (be able to) reflect configuration changed.

Both delete-functions (and maybe update-functions too?) should likely be marked in similar fashion as the creationDate and lastUpdateDate. To completely turn them of when the api+resolver for them are not generated.

Anyone have any comments on this implementation? @hartig @keski @rcapshaw
Should currently not impact anything for spirit.

Closes #64

[keski]

@epii-1, I believe you forgot to include the driver parser file. That being said, I think this might be a bit overkill (see #64). I'd suggest instead simply adding flags to the server.js call, and then call functions that conditionally add/update the corresponding date fields if enabled.

@epii-1 @hartig

[epii-1]

@keski graphql-server/drivers/driver_parser.py is included (with the second commit).
But indeed, simply adding flags to the update and create calls should work just fine (with a very tiny overhead increase that can safely be ignored).