Show more options for //DEPS assist

[quintesse]

I'm not sure what the current filters are for the //DEPS assist, but if you have a line like:

//DEPS org.slf4j:slf4j-simple:

And hit Alt+Space at the end of that line it only seems to show the very latest version. I can understand that showing all versions might result in very long lists for some artifacts, but perhaps we can show the last 10-20 ones at least?

[linux-china]

Yes, the result list is from fun suggestPrefix(groupId: String, artifactId: String,parameters: SearchParameters, consumer: Consumer<RepositoryArtifactData>) in DependencySearchService, and I will take a look.