Purged imperfect methods

I have given up on providing duck typing between Arrays and sequence objects
Create sort.bas
Update seq.bas
Create srch.bas
Update seq.bas
Rename srch.bas to seek.bas
list is now created with constructors.
Typed List will be for immutable.
added comment
sort.bas now only works on Arrays
Slowly removing methods from seq.bas
Merge branch 'sequence-consolidate'