Simplify command imports to help maintainability

[pvdz]

Ok hear me out.

• star exports are an anti-pattern because you don't really know what that file is exporting
• it's easier to figure out which commands are exposed now because they are explicitly listed (at the cost of some verbosity)
• the command objects are easier to grep for and easier to recognize (dependencies vs dependenciesCommand)
• the pattern where the command run method was accessing its exported member to get the description feels a bit oof
• 10 of the 121 "additions" are actually empty lines so the diff really only adds 111 lines vs 98 deleted and also it's just separating declarations and stuff for clarity and I'm planning to making all of that a bit more explicit and standard anyways and so ok who cares I guess.

This is the first step of many and I want to try and put them in separate commits for easy review and merging. Well. Merging will be my hell but ok.