Fix -Xoverride-konan-properties for Apple strip

When building an optimised release dynamic framework we see a lot of local symbols in Mach-O. When calling `strip -x` this can be dramatically reduced whilst still having a usable artefact.

Current logic seems to keep symbols for DSYM extraction in debug light mode. But only strips hardcoded debug symbols (`strip -S`) afterwards.

Introduce new stripFlags for Apple compilation to allow optimization for release with DSYM builds

kotlin-native/shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Configurables.kt

@@ -98,6 +98,7 @@ interface AppleConfigurables : Configurables, ClangFlags {
     val arch get() = targetString("arch")!!
     val osVersionMin get() = targetString("osVersionMin")!!
     val osVersionMinFlagLd get() = targetString("osVersionMinFlagLd")!!
+    val stripFlags get() = targetList("stripFlags")
     val additionalToolsDir get() = hostString("additionalToolsDir")
     val absoluteAdditionalToolsDir get() = absolute(additionalToolsDir)
 }

kotlin-native/shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Linker.kt

@@ -265,7 +265,7 @@ class MacOSBasedLinker(targetProperties: AppleConfigurables)
         if (debug) {
             result += dsymUtilCommand(executable, outputDsymBundle)
             if (optimize) {
-                result += Command(strip, "-S", executable)
+                result += Command(strip, *stripFlags.toTypedArray(), executable)
             }
         }