Use UTF-8 when talking to FSI.
Fixes #554
Merge pull request #555 from rojepp/fix_encoding

Use UTF-8 when talking to FSI.
Split TooltipProvider into its own file and renamed from FSharpLanguageItemTooltipProvider to FSharpTooltipProvider
Added LoggingService based logging for ResolverProvider and TooltipProvider
Upgraded to FCS version 48

Removed depreciated `DefaultMonospaceFontDescription` which is now
`MonospaceFont`
Added changes from InterfaceStubGenerator
Merge pull request #559 from 7sharp9/master

Upgraded to FCS version 48