Dissolve Move namespace into Activities & Traits
Dissolve Infiltration namespace
Dissolve Crates namespace, move CrateActions and Crate trait to Traits/Crates
Moved AttackLeap to Mods.RA.Traits, moved AttackPopupTurreted to
Mods.Cnc.Traits
Remove obsolete D2k sln

Closes #7163.
Merge pull request #7161 from reaperrr/dissolve-namespaces03

Dissolve Move, Infiltration and Crates namespaces