[WIP] Forcing text node on a leaf regardless of having attributes

[perevernihata]

Purpose / Goal

This PR is aimed to address issue with inconsistent parsing of leaf xml node depending on having attributes.

Type

• [x]New Feature

Note : Please ensure that you've read contribution guidelines before raising this PR. If your PR is in progress, please prepend [WIP] in PR title. Your PR will be reviewed when [WIP] will be removed from the PR title.

Benchmarks:

Before:

Running Suite: XML Parser benchmark
validation : 27318.44972450557 requests/second
xml to json : 25598.990886340493 requests/second
xml to json + json string : 22611.452524864457 requests/second
xml to json string : 3935.414783051609 requests/second
xml2js  : 7481.246469642413 requests/second

After:

Running Suite: XML Parser benchmark
validation : 16677.58957130443 requests/second
xml to json : 14956.997860785586 requests/second
xml to json + json string : 14365.03278613287 requests/second
xml to json string : 2784.9879303760063 requests/second
xml2js  : 5003.886648998017 requests/second

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[coveralls]

Coverage increased (+0.07%) to 88.049% when pulling 6b56ea0 on changingdigital:master into bbfecf9 on NaturalIntelligence:master.

[amitguptagwl]

Not sure with the purpose of this PR. But similar feature is available. So closing this PR. still if you feel the need please raise an issue to discuss.