Spike - Can we remove the need of mandatory extra dependencies

[ruimendesM]

Problem
Currently an aar file does not include any dependencies on it.
This means that we need to add the following dependencies on the project we are importing (outside of the firebase remote configs one):

    implementation "androidx.core:core-ktx:<version>
    implementation "androidx.preference:preference-ktx:<version>"

Otherwise the app will crash.

Questions to answer
1- Can we remove the need for those 2 libraries?
2- Would publishing this to an actual maven repository fix our problem?

If we can't find a solution
Add to the Readme.md the need for having these two extra libraries.