WIP: Kmers.jl compatibility

[jakobnissen]

This PR is a purely internal one. Since Kmers.jl shares a lot of internals with BioSequences (by design), this PR is intended to make any changes to BioSequences that I find useful when developing Kmers

TODO:

• Bump version
• Add downstream Kmers.jl unit tests

[codecov]

Codecov Report

Attention: Patch coverage is 18.51852% with 22 lines in your changes missing coverage. Please review.

Project coverage is 89.55%. Comparing base (95d9218) to head (c334880).
Report is 12 commits behind head on master.

Files with missing lines	Patch %	Lines
src/bit-manipulation/bit-manipulation.jl	26.66%	11 Missing ⚠️
src/alphabet.jl	0.00%	7 Missing ⚠️
src/biosequence/biosequence.jl	33.33%	2 Missing ⚠️
src/biosequence/indexing.jl	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #282      +/-   ##
==========================================
- Coverage   90.87%   89.55%   -1.32%     
==========================================
  Files          31       30       -1     
  Lines        2400     2547     +147     
==========================================
+ Hits         2181     2281     +100     
- Misses        219      266      +47     

Flag	Coverage Δ
unittests	89.55% <18.51%> (-1.32%)	⬇️

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[TransGirlCodes]

Heya @jakobnissen where did progress with this get to? Is there anything I can do to help out?

[jakobnissen]

Hey @TransGirlCodes !

I'm working on it on/off as other hobbies and work allows. I won't have time to finish it until early next year.
Do you need Kmers.jl working soon?
Unfortunately, I think I'm still in the early phase of hammering out a candidate 1.0 of Kmers.jl, which means a lot of iteration, and that makes it hard to cooperate. Once a candidate has landed, then the work can be more decentrlaized as tonnes of small things may need changes.