Searching for the new equivalent of `Solc::detect_version(..)`

[TilakMaddy]

I'm looking for the new equivalent of Solc::detect_version(..)

Additional Context
It was there in 0.3.0 but not in 0.4.0 which is breaking some changes for aderyn's

[mattsse]

thanks for flagging, we refactored a bunch of stuff and a lot of install handling was moved to SolcVersionManager

I've added the detect_version fn back because this is still useful.

there are likely still some inconveniences, so please lmk if you think something could be improved