Add Declarative Configuration for Ignoring Apex Classes in Stack Traces

[JMercie]

Issue Reference: #890

Solution

Implemented a declarative approach that allows admins to configure Apex classes to ignore globally through Custom Metadata Types, without requiring any code changes.

Changes

• Added IgnoredApexOrigins to LoggerParameter__mdt to drive functionality with default empty array [].
• ignoreOrigin() calls continue to work unchanged.
• New IGNORED_APEX_ORIGINS getter and setter for LoggerParamter.cls and LoggerStackTrace.cls.