Add macosArm64 target and migrate iosMain to appleMain

* Add `macosArm64()` to the Kotlin Multiplatform targets in `KotlinMultiplatformConventionPlugin`
* Move `Clock.ios.kt` from the `iosMain` directory to `appleMain` to support the broader Apple platform ecosystem

Signed-off-by: scottolcott <scottolcott@gmail.com>

Author: solcott

…tore/store5/impl/extensions/Clock.ios.kt …tore/store5/impl/extensions/Clock.ios.ktstore/src/iosMain/kotlin/org/mobilenativefoundation/store/store5/impl/extensions/Clock.ios.kt renamed to store/src/appleMain/kotlin/org/mobilenativefoundation/store/store5/impl/extensions/Clock.ios.kt store/src/iosMain/kotlin/org/mobilenativefoundation/store/store5/impl/extensions/Clock.ios.kt renamed to store/src/appleMain/kotlin/org/mobilenativefoundation/store/store5/impl/extensions/Clock.ios.kt

@@ -51,6 +51,7 @@ class KotlinMultiplatformConventionPlugin : Plugin<Project> {
             iosX64()
             iosArm64()
             iosSimulatorArm64()
+            macosArm64()
 
             linuxX64()