Update account with new properties

[shuse2]

Description

Add properties in account class and in the database schema.

1. votes property is an array with objects { delegateAddress: string, amount: bigint }, and in the JSON format, amount has to be “string”
   account.votes property in the database is changed to JSONB
2. unlocking property is an array with objects { delegateAddress: string, amount: bigint, unvoteHeight: number }, and in the JSON format, amount has to be “string”
   account.unlocking property in the database is JSONB
3. Update voteWeight to totalVotesReceived. Property should be bigint and in the database it should be string
4. Bundle all the delegate related properties into delegate property for both application and database.
   which will be

delegate: {
	lastForgedHeight: number,
	registeredHeight: number,
	totalVotesReceived: bigint,
	consecutiveMissedBlocks: number,
	isBanned: boolean,
	pomHeights: number[],
}

Motivation

In order to support new DPoS system, account need to have new properties

Acceptance Criteria

• All properties in the description is added to account class
• All properties in the description is added to mem_account table
• Test all property can be read/write from the database
• Test all property are correctly converted from JSON to instance properties

Related issues

#4915