Parameter not implemented

[J12934]

The target parameter ARACHNI_SCAN_METHODS is currently not being used.

The parameter gets read from the target but its not getting passed along to arachni.

https://github.com/secureCodeBox/scanner-webapplication-arachni/blob/0960aa2595a9ec557db775235c4f001cb9ee1a98/src/arachni_configuration.rb#L39

https://github.com/secureCodeBox/scanner-webapplication-arachni/blob/0960aa2595a9ec557db775235c4f001cb9ee1a98/src/arachni_configuration.rb#L81

• [x] Fix scanner wrapper code
• [ ] Add input field to the engine form

The available checks can be found in the arachni documentation: https://github.com/Arachni/arachni#checks

[J12934]

ARACHNI_SCAN_METHODS is now used inside the wrapper. But the form in the engine hasn't been updated, meaning that the parameter currently can only be set via the api.