Issue 183 signature is not pades compliant

[ElTimuro]

This solves: Issue 183

The validation result "The signature is not intact!" was caused by the wrong order of authenticatedAttributes in node-signpdf/src/signpdf.js.

This was found by @victorgrodriguesm7 here: https://github.com/vbuch/node-signpdf/issues/70#issuecomment-861435746.

I changed the order and validated the result using https://ec.europa.eu/digital-building-blocks/DSS/webapp-demo/validation and the certificate in /ressources.

[ElTimuro]

@vbuch just fixed the linting check

[coveralls]

Pull Request Test Coverage Report for Build 4222073601

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 4191872983:	0.0%
Covered Lines:	331
Relevant Lines:	331

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💛 - Coveralls

[cfranc0]

Is there a timeline for the release of the updated package via npm? Thanks!

[vbuch]

Taking it as a task and will try to do it by the end of the week. Sorry.

[vbuch]

1.5.1