Fix bugs with moving account & ou and filtering for organization endpoint.

[myersCody]

Jira Issues:
https://issues.redhat.com/browse/COST-160
https://issues.redhat.com/browse/COST-157

This pr fixes some bugs in the organizational endpoint.

COST-160

This bug is because I didn't catch accounts and sub_ou moving from one organizational unit (ou) to another ou properly. Therefore, the account was showing up in its previous ou and the new ou. The same goes for child organizational unit moving from one parent to another.

How to test

Therefore to test that this has been fixed you will need to bring up the server and run make load-aws-org-unit-tree

After the tree has been populated in the database, we can look at this endpoint: http://127.0.0.1:8000/api/cost-management/v1/organizations/aws/

Check Moving Account

The account 003 was moved from OU_002 to OU_003. Therefore, we just need to check that account 003 no longer shows up in OU_002, but does show up in OU_003

Check Moving OU

The child organizational unit or sub_ou OU_005 was moved from OU_002 to OU_001. Therefore, we just need to check that OU_005 is not in OU_OO2's sub_orgs but is in OU_001

Note: You can check how the accounts and ou are moved by looking at the aws_org_tree.yml file.

COST-157

This bug was that the sub_orgs were not showing up when using ?filter[org_unit_id]=OU_001. I managed to fix this as a result of fixing 160. To test this one you just need to make sure the sub_orgs now show up when you hit the endpoint with the filter. If you already have run make load-aws-org-unit-tree you should be able to go to: http://127.0.0.1:8000/api/cost-management/v1/organizations/aws/?filter[org_unit_id]=OU_001 and see:

        {
            "org_unit_id": "OU_001",
            "org_unit_name": "Dept OU_001",
            "org_unit_path": "R_001&OU_001",
            "level": 1,
            "sub_orgs": [
                "OU_005"
            ],
            "accounts": [
                "account 001",
                "account 002"
            ]
        }

[codecov]

Codecov Report

Merging #2168 into master will increase coverage by 0.0%.
The diff coverage is 100.0%.

@@          Coverage Diff           @@
##           master   #2168   +/-   ##
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  Coverage    94.4%   94.4%           
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  Files         230     230           
  Lines       15959   15963    +4     
  Branches     1821    1821           
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+ Hits        15061   15067    +6     
+ Misses        589     587    -2     
  Partials      309     309           

[abaiken]

I will re-review as soon as RBAC is fixed! 😄

[abaiken]

LGTM & I tested it 👍 We should hold off merging this until the CI dependency issues are resolved.