feat(sample logging middleware)

[lkhari]

What did you implement:

I allowed users to have the choice if their uncaught errors are to be logged. This allows people to send validation errors to appsync or step functions without being logged out as errors.
#145

How did you implement it:

I added an enviroment variable ( POWERTOOLS_IGNORE_ERRORS ) following a proposed standard from #53. to give people the choice if they want there uncaught errors to be logged.

How can we verify it:

Have a lambda function return an error wrapped with sample logging middleware. Ensure that when enviroment variable POWERTOOLS_IGNORE_ERRORS = true then it doesn't log errors sent back. Also when POWERTOOLS_IGNORE_ERRORS is anything else that it logs the errors.

Todos:

• Write tests
• Write documentation
• Fix linting errors
• Make sure code coverage hasn't dropped
• Provide verification config / projects / resources
• Enable "Allow edits from maintainers" for this PR
• Update the messages below

Is this ready for review?: Yes
Is it a breaking change?: NO

[theburningmonk]

since we use semantic-release we need the commit messages to follow conventional commit

[theburningmonk]

LGTM