feat: [v0.8-develop] merge pre validation types

[adam-alchemy]

Motivation

Motivation and rationale very similar to #40. With validation function assignments merged, it makes sense to also merge pre-validation types.

"Merge" here means that when a pre validation hook is applied (an installed plugin address + a function id for the hook), then the two plugin functions preUserOpValidationHook and preRuntimeValidationHook should both start to be called in their respective workflow paths, using the same function id.

This reduces redundancy in manifests, and avoids the possibility of configuring one type of validation but not the other.

This simplification helps pave the way for multiple validation & better composability by reducing the size and complexity of account state.

Solution

• Consolidate the manifest fields (and account storage fields) preUserOpValidationHooks and preRuntimeValidationHooks into one field preValidationHooks.
• Merge pre validation hook function ids in provided sample and mock plugins.
• Update the return type of getPreValidationHooks in IAccountLoupe to only return one array of FunctionRefernce types.

[howydev]

LGTM

[huaweigu]

lgtm