Remove use of explicit internal

[regexident]

As discussed in #19 (comment).

[codecov]

Codecov Report

Merging #29 into master will not change coverage.
The diff coverage is 82.6%.

@@           Coverage Diff           @@
##           master      #29   +/-   ##
=======================================
  Coverage   50.55%   50.55%           
=======================================
  Files          28       28           
  Lines        1351     1351           
=======================================
  Hits          683      683           
  Misses        668      668

Impacted Files	Coverage Δ
Sources/XMLCoder/Encoder/XMLEncodingStorage.swift	88.88% <ø> (ø)	⬆️
Sources/XMLCoder/Decoder/XMLDecodingStorage.swift	81.81% <ø> (ø)	⬆️
Sources/XMLCoder/Auxiliaries/XMLStackParser.swift	83.92% <ø> (ø)	⬆️
...rces/XMLCoder/Decoder/DecodingErrorExtension.swift	0% <0%> (ø)	⬆️
...urces/XMLCoder/Encoder/XMLReferencingEncoder.swift	0% <0%> (ø)	⬆️
...rces/XMLCoder/Encoder/EncodingErrorExtension.swift	0% <0%> (ø)	⬆️
...s/XMLCoder/Encoder/XMLKeyedEncodingContainer.swift	42.16% <100%> (ø)	⬆️
...es/XMLCoder/Auxiliaries/ISO8601DateFormatter.swift	100% <100%> (ø)	⬆️
Sources/XMLCoder/Auxiliaries/XMLHeader.swift	95.23% <100%> (ø)	⬆️
Sources/XMLCoder/Auxiliaries/XMLElement.swift	90% <100%> (ø)	⬆️
... and 7 more

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[MaxDesiatov]

thanks, lgtm

[MaxDesiatov]

@regexident, looks like a few conflicts appeared after merging your other PR, hope these can be resolved easily

[regexident]

Should be ready to merge now. 🙂

[MaxDesiatov]

@hodovani this can be reviewed and/or merged as usual. Thanks!