Additional Lambda Handler detection for setting module.exports to an object

[awschristou]

Is your feature request related to a problem? Please describe.

Extend the javascript Lambda Handler candidate detection from Issue #140 PR #142 to support the following scenarios:

const myExports = {
    foo: // ...
    bar: // ...
}

[module.]exports = myExports

// and

[module.]exports = {
    foo: // ...
    bar: // ...
}

Describe the solution you'd like

Where foo and bar are valid candidates for Lambda function handlers, they are detected with the rest of the candidates.

Describe alternatives you've considered

Additional context