Feature Request: Query all liquidity pools an account is participating in.

[Shaptic]

What problem does your feature solve?

It can be unwieldy to determine which pools an account is participating in if you don't track this client-side.

What would you like to see?

GET /liquidity_pools?account=<id> returning a list of pools that have <id> as a participant (in other words, any pools to which <id> has a trustline established).

What alternatives are there?

One can query an account to get its balances, then query the specific liquidity pool IDs for each of the pool shares. One can also store the pool IDs locally whenever the account starts participating in a pool.