Allow more inputs for the Logic Analyzer

[c1570]

Is your feature request related to a problem? Please describe.
For debugging things like 8/16 bit buses (plus clocks), the 8 inputs of the current Logic Analyzer are not enough.

(it is possible to use multiple LAs in one project, but that is quite a cludge)

Describe the solution you'd like
Make the number of inputs of the Logic Analyzer configurable, or (as a quick "solution") add a 20 channel LA or similar.

[urish]

Thanks! I opened this for voting