Move skipMetadataVersionCheck flag to LanguageVersionSettings

This makes it possible to avoid the CompilerConfiguration instance in
injectors, because CompilerDeserializationConfiguration was the only
left component that required it.

LanguageVersionSettings is not a good name for this entity anymore, it
should be renamed in the future

Original commit: ac530ac49c

jps/jps-common/src/org/jetbrains/kotlin/config/KotlinFacetSettings.kt

@@ -123,6 +123,12 @@ class KotlinFacetSettings {
                 coroutinesError = value == CoroutineSupport.DISABLED
             }
         }
+
+    var skipMetadataVersionCheck: Boolean
+        get() = compilerArguments?.skipMetadataVersionCheck == true
+        set(value) {
+            compilerArguments!!.skipMetadataVersionCheck = value
+        }
 }
 
 fun TargetPlatformKind<*>.createCompilerArguments(): CommonCompilerArguments {