BHoM_Engine: Fix ThrowError confusion for developers

[FraserGreenroyd]

Fixes #3301

This will now make it so that ThrowErrorsAsExceptions(true) is turning on error throwing, as opposed to turning it off in the previous implementation.

[FraserGreenroyd]

@BHoMBot check compliance

[bhombot-ci[bot]]

@FraserGreenroyd to confirm, the following actions are now queued: - check `code-compliance` - check `documentation-compliance` - check `project-compliance` - check `branch-compliance` - check `dataset-compliance` - check `copyright-compliance`

[FraserGreenroyd]

@BHoMBot check versioning @BHoMBot check installer @BHoMBot check core @BHoMBot check null-handling @BHoMBot check serialisation

[bhombot-ci[bot]]

@FraserGreenroyd to confirm, the following actions are now queued: - check `versioning` - check `installer` - check `core` - check `null-handling` - check `serialisation`

[FraserGreenroyd]

Thanks @Tom-Kingstone - I have also updated the docs on this change ready as well.

[FraserGreenroyd]

@BHoMBot this is a DevOps instruction. I am requesting neutral checks on: unit-tests

[bhombot-ci[bot]]

@FraserGreenroyd I have provided neutral checks to the checks requested. These checks will need to be run properly to obtain full results.

[FraserGreenroyd]

@BHoMBot check ready-to-merge

[bhombot-ci[bot]]

@FraserGreenroyd to confirm, the following actions are now queued: - check `ready-to-merge`