Added support of aws codepipeline getpipeline method

[subhajit20]

Problem

Added support of aws codepipeline getpipeline method

Issue - #1176

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Solution

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Changes Made

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How to Test

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Screenshots

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Notes

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Checklist

• Code follows the contributing guidelines
• Changes have been thoroughly tested
• Documentation has been updated, if necessary
• Any dependencies have been added to the project, if necessary

Reviewers

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[Azanul]

• Please remove the change to favicon
• Rename GetPipeline to GetPipelines, for consistency
• Remove all cost calculations, as noted in the respective issue

[subhajit20]

Sorry actually I have made some mistakes, will delete this branch and make a new one.