Tools - Weathertop: Update plugin stacks to include EnvVars

[ford-at-aws]

This PR updates all Weathertop plugin stacks so that a new environment variable is available as a part of all Job Definitions.

NOTE: As part of testing, this change has been deployed to all plugin environments.

Docs on using custom EnvVars in AWS Batch Fargate using ContainerProperties

Here is an example of the new Job Def, presented here in JSON format bc the EnvVar is not visible in the Console:

{
  "jobDefinitionName": "JobDefn-xxxxxx",
  "jobDefinitionArn": "arn:aws:batch:us-east-1:xxxxxxx:job-definition/JobDefn-xxxxx:3",
  "revision": 3,
  "status": "ACTIVE",
  "type": "container",
  "parameters": {},
  "containerProperties": {
    "image": "808326389482.dkr.ecr.us-east-1.amazonaws.com/cpp:latest",
    "command": [],
    "jobRoleArn": "arn:aws:iam::770244195820:role/BatchExecutionRole-cpp",
    "executionRoleArn": "arn:aws:iam::770244195820:role/BatchExecutionRole-cpp",
    "volumes": [],
    "environment": [
      {
        "name": "S3_BUCKET_NAME_PREFIX",
        "value": "sdk-example-code"
      }
    ],
    "mountPoints": [],
    "ulimits": [],
    "resourceRequirements": [
      {
        "value": "4",
        "type": "VCPU"
      },
      {
        "value": "16384",
        "type": "MEMORY"
      }
    ],
    "secrets": [],
    "networkConfiguration": {
      "assignPublicIp": "ENABLED",
      "interfaceConfigurations": []
    },
    "fargatePlatformConfiguration": {
      "platformVersion": "LATEST"
    }
  },
  "tags": {},
  "propagateTags": false,
  "platformCapabilities": [
    "FARGATE"
  ],
  "containerOrchestrationType": "ECS"
}

[cpyle0819]

Recommending creating a variables.json file that can be read, parsed, and passed directly to the batch env vars instead of doing the extra processing.