[Feature] Cycles Management API & Service

[ByronBecker]

Motivation

The Internet Computer currently does not have tooling for automating canister cycles management. As developers build multiple applications, or individual applications that involve a multi-canister approach, manually managing cycles for each of these projects and canisters is cumbersome and error prone.

Requirements

• Build a cycles management service that automates ICP to cycles transactions and follows user-specified auto top-up rules for each of their canisters
• The service will not just provide a single place for topping up your canisters, but will notify developers when their canisters have been topped up or ICP balance is running low.
• Build a library that easily interacts with the cycles management service and provides a single canister interface that the developer would own, and could control cycles management from that point on a more granular basis.