Add `errors` package to standardize error handling across the project

[chasefleming]

Closes #???

Description

Usage:

flowErrors.IsErrorType(err, flowErrors.StorageLimitExceeded)

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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

[codecov-commenter]

Codecov Report

:x: Patch coverage is 0% with 15 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
internal/errors/codes.go	0.00%	15 Missing :warning:

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