Simplify CallStack

[confused-Techie]

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Description of the Change

This PR works to simplify CallStacks.

The CallStack is a custom object of the SSO object. The CallStack keeps tracks of all calls made at each step of the endpoint, retaining their information and logging it to allow easy investigation.

Previously every call in a callstack was added each time an SSO object was returned. But this PR creates a CallStack class, which allows a few improvements over the old method:

• Each endpoint keeps track of a callStack variable, that can be added during SSO creation. Ensuring totally accurate stacks
• The timing details of a CallStack entry are much more accurate, or at least closer to showing runtime between steps, which can help optimization in the future.
• We are now able to add custom events into the callstack, such as the init event.
• We are now able to easily sanitize the data being added to the callstack. Which currently is used to ensure sensitive data is never logged.