Experiments: KernelSHAP method parameters range

[elboyran]

Define for which parameters would KernalSHAP be evaluated and how the continuously changing parameter range would be defined.

See the dianna's implementation of KernelSHAP and example usage on images: Binary MNIST and geometric shapes.

The outcome of this issues should be:
<parameter>: <range>,
where
<range> = <start_value>:<step>:<end_value>
for every methods' parameter (if more than 1).
See also the dashboard for modifiable parameters.