Add more missing dependencies

src/Microsoft.Dnx.DesignTimeHost.Abstractions/project.json

@@ -14,6 +14,7 @@
     "net451": {},
     "dotnet5.4": {
       "dependencies": {
+        "System.Resources.ResourceManager": "4.0.1-*"
       }
     }
   },

src/Microsoft.Extensions.CompilationAbstractions/project.json

@@ -18,7 +18,8 @@
     "dotnet5.4": {
       "dependencies": {
         "System.IO.FileSystem": "4.0.1-*",
-        "System.Runtime.Extensions": "4.0.11-*"
+        "System.Runtime.Extensions": "4.0.11-*",
+        "System.Resources.ResourceManager": "4.0.1-*"
       }
     }
   },