Investigate the requirement of having two arrays for the weak and active hazard pointers or having a single array for both

Current WiredTiger stores all hazard pointers on the session in a single array. With the introduction of the weak hazard pointer and the requirement of needing to store a lot of them on sessions we should determine if it is best to store the hazard pointers in a single array with both active and weak pointers, or if it's better to have two separate arrays on the session.

Things to consider:

• Impact on eviction performance
• Complexity of code logic
• Growing and shrinking the hazard pointer arrays

Scope:

• Determine which solution works better and describe the implementation on the follow on ticket: WT-8303