Fix flaky nodepools and deprecated items

[git-ival]

• Adds more robust waits for nodes, and ingress components
• Modifies the method of spinning up nodepools so that flakiness due to joining target groups too early is a non-issue
• Updates aws provider
  • Fixes #51
  • Fixes #54
• Replace deprecated template provider
• Improve userdata
• Improve outputs

[adamacosta]

Closing just because far too much of this has changed at this point