Dependency checking and local versions of mods #259

At the moment the sole source of the dependency checking logic is the workshop metadata, which has a shortcoming - it cannot understand that a local mod is the same one as "requested" by a workshop id, thus creating false positives.

The worst "offender" in this case is the CHL which has a lot of dev/pre-release versions, but other mods can also encounter this issue.

Previous discussions on this topic:

• https://discord.com/channels/165245941664710656/323839825926946816/807352993128251464 - https://discord.com/channels/165245941664710656/323839825926946816/807363241671917568
• For the purposes of Mod Dependencies, treat BETA Highlander as a suitable replacement for Highlander. #218
• https://discord.com/channels/165245941664710656/323839825926946816/734447497782624338 - https://discord.com/channels/165245941664710656/323839825926946816/734494076715663371