Expose CoverageReport through Emulator interface

[m-Peter]

Work towards: onflow/developer-grants#132

Description

This will allow tools that build on-top of the Flow Emulator, to be able to inject/retrieve the CoverageReport object.
Context: bjartek/overflow#107

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For contributor use:

• Targeted PR against master branch
• Linked to GitHub issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the GitHub PR explorer
• Added appropriate labels

[m-Peter]

cc @bjartek

[sideninja]

Check the tests.

[bluesign]

I thinks mocks need to regenerated @m-Peter (make generate)

[m-Peter]

On it 🙏

[codecov-commenter]

Codecov Report

Merging #362 (2e1da89) into master (acb82b9) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #362   +/-   ##
=======================================
  Coverage   47.39%   47.39%           
=======================================
  Files          26       26           
  Lines        3397     3397           
=======================================
  Hits         1610     1610           
  Misses       1656     1656           
  Partials      131      131           

Flag	Coverage Δ
unittests	47.39% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
blockchain.go	68.10% <ø> (ø)

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[sideninja]

@m-Peter ok to merge?

[m-Peter]

@sideninja Sure, if it's OK for you, let's merge 🙏

[sideninja]

@m-Peter I will tag and you can update the PR in CLI to the tagged version

[m-Peter]

Perfect 💯💯💯