Enable an agent-based workflow on Polyaxon CE

[polyaxon-team]

Current behavior

In order to push several features to Polyaxon CE and to reduce any duplicate code, logic, or efforts, we should enable an agent-based scheduling process on Polyaxon CE.

Currently, Polyaxon CE will schedule any operation immediately without keeping any logic or queue. On Polyaxon CE users can enable the async scheduler which has a queue but it's only used for processing the execution in the background.

Enhancement

By enabling an agent-based workflow on Polyaxon CE, we can expose some features like concurrency and a global queue on Polyaxon CE. Other features like batch deletion, project cleanup, and batch notifications can be enabled as well.