`trace` decorator arguments

[szokeasaurusrex]

Problem Statement

The sentry_sdk.trace decorator takes no arguments (besides the function being decorated). This means that the user cannot specify custom arguments to the start_span that the trace decorator internally calls.

Solution Brainstorm

Add an *args and/or a **kwargs parameter to the trace decorator. If the user passes anything, these parameters would be forwarded to the start_span call.

[antonpirker]

the trace decorator has been improved and the new parameter are also documented. closing this.