Remove CommonCrypto and use encoded string as hash

[cbaker6]

Now Apple OSs, Linux, and Android all hash the same way when saving child objects

[codecov]

Codecov Report

Merging #184 (433d4da) into main (315db3c) will decrease coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #184      +/-   ##
==========================================
- Coverage   82.45%   82.37%   -0.09%     
==========================================
  Files          72       71       -1     
  Lines        6726     6705      -21     
==========================================
- Hits         5546     5523      -23     
- Misses       1180     1182       +2     

Impacted Files	Coverage Δ
Sources/ParseSwift/Protocols/Objectable.swift	83.33% <ø> (-4.17%)	⬇️
Sources/ParseSwift/Coding/AnyEncodable.swift	61.18% <0.00%> (-0.66%)	⬇️
Sources/ParseSwift/Types/Query.swift	93.20% <0.00%> (-0.18%)	⬇️

---

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 315db3c...433d4da. Read the comment docs.