Add '--noStripTrailingSlashInUrl' option

[grakic]

Description

Add --noStripTrailingSlashInUrl option passing ending slash to Lambda event.

Motivation and Context

We have Lambda responding on HTTP event having /{any+} path. Currently it is not possible to receive trailing slash in the requested event path. Both /dev/hello and /dev/hello/ are sent to Lambda as /dev/hello.

Extra option allows event to be set with a trailing slash and allows request to be sent to Lambda with a trailing slash.

[pgrzesik]

Thank you @grakic - it looks great overall, I just have one small comment and we should be good to go 🙌

[grakic]

@pgrzesik I was checking how this change relates to 5ce8f87, but seems like both are still needed.

We have to pass path with trailing slash to hapi request first (this change) before event can be built using request path.

[pgrzesik]

Thanks for the cleanup and confirmation @grakic 👍