Pagination support on APIs with lists

[gjermundgaraba]

Every API is currently just returning everything right now.

For every API that returns an "unbound" list of items, we need to:

1. Add pagination query params (similar to the ones used in the Cosmos SDK CLI client)
2. Set some sensible defaults (e.g. max 100 or 50 items per page by default or something like that)

• limit: pagination limit of all balances to query for (default 10)
• offset: pagination offset of all balances to query for
• page: pagination page of all balances to query for. This sets offset to a multiple of limit (default 1)