Refactor: separate out items useful for 'stack ide ghc-options' command

Author: mpilgrem

package.yaml

@@ -179,6 +179,7 @@ library:
   - Stack.Build.Execute
   - Stack.Build.ExecuteEnv
   - Stack.Build.ExecutePackage
+  - Stack.Build.FileTargets
   - Stack.Build.Haddock
   - Stack.Build.Installed
   - Stack.Build.Source
@@ -321,6 +322,7 @@ library:
   - Stack.Types.GhcPkgExe
   - Stack.Types.GhcPkgId
   - Stack.Types.GhciOpts
+  - Stack.Types.GhciPkg
   - Stack.Types.GlobalOpts
   - Stack.Types.GlobalOptsMonoid
   - Stack.Types.HpcReportOpts