Kotlin: bubble sort (#48)
Kotlin: bubble sort (#48)

* Kotlin: bubble sort

* Added in-place variant

mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview,mre/the-coding-interview