fix: Remove Unneeded/Redundant Manifest Fields

[sleepdefic1t]

Proposed changes

This PR removes the following fields from library.json:

• "export"
• "examples"

Releases should include all files and folders from the root/ dir for the source code zip.
Also, Per PIO, the "examples" field not being present defaults to the paths that are already shown. So this part is just redundant.

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (improve a current implementation without adding a new feature or fixing a bug)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Build (changes that affect the build system)
• Docs (documentation only changes)
• Test (adding missing tests or fixing existing tests)
• Other... Please describe:

Checklist

• I have read the CONTRIBUTING documentation
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[ghost]

@air1one @faustbrian - please review this in the next few days. Be sure to explicitly select labels so I know what's going on.

If no reviewer appears after a week, a reminder will be sent out.

[codecov-io]

Codecov Report

Merging #70 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #70   +/-   ##
=======================================
  Coverage   77.67%   77.67%           
=======================================
  Files          22       22           
  Lines         318      318           
=======================================
  Hits          247      247           
  Misses         71       71

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