Parse flags in account_info method

[drlongle]

High Level Overview of Change

This PR resolves #2457. It adds an object account_flags at the top level of the account_info response. This new object contains relevant flags of an account.

Context of Change

./ripped account_info rG1QQv2nh2gr7RCZ1P8YYcBUKCCN633jCn

{
        "result" :
        {
                "account_data" :
                {
                        ...
                        ...
                },
                "account_flags" :
                {
                        "defaultRipple" : true,
                        "depositAuth" : true,
                        "disableMasterKey" : false,
                        "disallowIncomingCheck" : true,
                        "disallowIncomingNFTokenOffer" : true,
                        "disallowIncomingPayChan" : true,
                        "disallowIncomingTrustline" : true,
                        "disallowIncomingXRP" : true,
                        "globalFreeze" : true,
                        "noFreeze" : true,
                        "passwordSpent" : false,
                        "requireAuthorization" : true,
                        "requireDestinationTag" : true
                },
                "ledger_current_index" : 17,
                "status" : "success",
                "validated" : false
        }
}

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking change that only restructures code)
• Tests (You added tests for code that already exists, or your new feature included in this PR)
• Documentation Updates
• Release

[justinr1234]

Only comment would be to make a docs ticket on xrpl-dev-portal repo, otherwise looks great! Nice work!

[intelliot]

@drlongle will check whether there are any other flags to add

[drlongle]

@drlongle will check whether there are any other flags to add

All account flags defined in LedgerFormats.h have been added.

[seelabs]

👍 Looks good to me. Nice job on this.

[intelliot]

@drlongle at your convenience, please comment with a suggested commit message for this PR

[drlongle]

Below is my suggestion for a commit message.

Add an object containing account flags to the account_info's response: (#2457)

Currently, the object account_data of the account_info's response contains a single field Flags that stores relevant flags of an account. Users need to performing bitwise operations on this field to retrieve relevant account flags. This PR adds a new object containing relevant flags of an account. This makes it easier to write simple code to check a flag's value.