Set the maximum memory value for session creation to be limited by the smallest node.

## Motivation  

- The current issue occurs because the setting is based only on the remaining GPUs, and if resources in a project's resource group have different values, there are not enough resources to always be pending.

## Required Features

- Provide an API to choose which resource quantity (min, max, or custom) to retrieve for each node in a resource group

JIRA Issue: BA-830