Improvements idea

[danielgomezrico]

The idea was took from https://medium.com/@BladeCoder/reducing-parcelable-boilerplate-code-using-kotlin-741c3124a49a.

If you have an internal KParcelable then:

1. You dont have to put describeContents everywhere.

interface KParcelable : Parcelable {
    override fun describeContents() = 0
    override fun writeToParcel(dest: Parcel, flags: Int)
}

2. You can have a parcelableCreator function like:

inline fun <reified T> parcelableCreator(crossinline create: (Parcel) -> T): 
Parcelable.Creator<T> {
    return object : Parcelable.Creator<T> {
        override fun createFromParcel(source: Parcel) = create(source)
        override fun newArray(size: Int) = arrayOfNulls<T>(size)
    }
}

to write simpler creators:

companion object {
        @JvmField
        val CREATOR: Parcelable.Creator<RealEstate> = parcelableCreator(::RealEstate)
    }