Add initialization option to change limit on workspace symbols

[karthiknadig]

Currently workspace symbols are limited 20. This should be a setting that can be controlled via initialization options, with following interpretation:

• 0 to mean disable limit.
• >0 as the number of symbols to limit.

[pappasam]

@karthiknadig Any reason for the >0 versus 0? Does this match some universal interface?

Is there is no strong justification, I think I'll just take an integer and interpret anything less than or equal to 0 as disabling the limit.

[pappasam]

Released in 0.26.0

[karthiknadig]

Thanks for adding this :)

I think I'll just take an integer and interpret anything less than or equal to 0 as disabling the limit.

This works.