Add iOS target using Compose Multiplatform

**Describe the solution you'd like**
Add platform-specific code for iOS, using JetBrains Compose Multiplatform.

JB Compose iOS support is now in Alpha [compose-multiplatform/releases/tag/v1.4.0](https://github.com/JetBrains/compose-multiplatform/releases/tag/v1.4.0) and enables the use of UiKit views in Compose.
Kotlin Multiplatform Mobile recently moved to Beta and `cocoapods` integration works: [kotlinlang.org/docs/native-cocoapods.html](https://kotlinlang.org/docs/native-cocoapods.html)

Since `android-maps-compose` library is a wrapper for an Android view, it may result easy to adapt the existing structure to wrap also iOS objective-c Maps sdk.

A quick implementation labeled as `alpha` could come handy for developers to start playing with it, while waiting JB Compose iOS support to exit Alpha state.