Refactor LocalDomainError and SimulationError for improved exception handling.

[SlipperyGnome]

This change is for the issue #48 The catch blocks for SimulationError and LocalDomainError in this file had messy and repetitive codes which are now defined in one function _handleFLINTException. This change is done only for one set of try/catch blocks for now.

Signed-off-by: Debolina Ghatuary [email protected]

[aornugent]

@RobboW - is there anyone on your team available to review @SlipperyGnome's changes? If acceptable, it'd be great to understand where else the templated exception function can be used and what a complete PR should contain.

[RobboW]

Let me check.