Move MemoryBuffer definition to StrideArraysCore

[chriselrod]

No description provided.

[DilumAluthge]

Looks good. Thanks for also fixing the compat entries!

[codecov]

Codecov Report

Merging #78 (d7189cb) into master (0123f39) will increase coverage by 0.17%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #78      +/-   ##
==========================================
+ Coverage   84.42%   84.60%   +0.17%     
==========================================
  Files          10       10              
  Lines         578      565      -13     
==========================================
- Hits          488      478      -10     
+ Misses         90       87       -3     

Impacted Files	Coverage Δ
src/memory_buffer.jl	68.42% <ø> (+18.42%)	⬆️
src/types.jl	100.00% <ø> (ø)
src/global_constants.jl	46.66% <0.00%> (-8.89%)	⬇️
src/matmul.jl	88.67% <0.00%> (-1.14%)	⬇️
src/block_sizes.jl	96.61% <0.00%> (+1.69%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0123f39...d7189cb. Read the comment docs.