feat: override LLMQ params

[shumkov]

Issue being fixed or feature implemented

We use custom quorum params for the local network in order to use only one masternode instead of 3

What was done?

• Added an argument to SML classes to override LLMQ params

How Has This Been Tested?

As a part of test suite

Breaking Changes

None

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation

[Copilot]

Pull Request Overview

This PR introduces an option to override default LLMQ parameters by adding an optional llmqParamsOverride argument across various classes. Key changes include:

• Adding llmqParamsOverride to payload parsing in CommitmentTxPayload.
• Propagating llmqParamsOverride in SimplifiedMNListDiff and SimplifiedMNList helper functions.
• Modifying QuorumEntry and constants to support quorum parameter overrides.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
lib/transaction/payload/commitmenttxpayload.js	Updated fromBuffer to accept and pass llmqParamsOverride to QuorumEntry.getParams.
lib/deterministicmnlist/SimplifiedMNListDiff.js	Added llmqParamsOverride parameter to constructors and parsing functions (fromBuffer, fromObject, fromHexString, fromJSON).
lib/deterministicmnlist/SimplifiedMNList.js	Propagated llmqParamsOverride through the constructor and related methods.
lib/deterministicmnlist/QuorumEntry.js	Revised constructor and helper methods to handle llmqParamsOverride and merged parameters using _.merge.
lib/constants/index.js	Defined LLMQ_TYPE_PARAMS to centralize default quorum parameters.

Comments suppressed due to low confidence (1)

lib/deterministicmnlist/QuorumEntry.js:75

• The check 'if (arg instanceof QuorumEntry)' is repeated in the constructor. Removing the duplicate check can simplify the logic and improve clarity.

if (arg instanceof QuorumEntry) {