Add yosys-slang as a new tool to test

[povik]

Hello everyone,

yosys-slang is a minor experiment of building a Yosys frontend on top of Slang. Having it on your dashboard might help gauge where it stands, and aid its development (should there be any). Please consider merging this in.

[povik]

The tool seems to have built, switching this away from being a draft

[github-actions]

Changes In Tests

Tool	New Failures	New Passes	Added	Removed	Not Affected
Icarus	0	0	0	0	4668
sv_parser	0	0	0	0	4590
tree_sitter_verilog	0	0	0	0	4499
Sv2v_zachjs	0	0	0	0	4653
Yosys	0	0	0	0	4312
VeribleExtractor	0	0	0	0	4499
Slang_parse	0	0	0	0	4590
UhdmVerilator	0	0	0	0	4668
moore_parse	0	0	0	0	4499
Slang	0	0	0	0	4653
Surelog	0	0	0	0	4653
Odin	0	0	0	0	4590
Verible	0	0	0	0	4499
moore	0	0	0	0	4590
SynligYosys	0	0	0	0	4311
Verilator	0	0	0	0	4668

Download an archive containing all the details

[QuantamHD]

LGTM