Added Service Accounts page to settings

[bexsoft]

fixes #53

What does this do?

Added service accounts page to settings module

How to test

• Create an account with permissions to see service accounts or add this fragment of code into line 350 of Console.tsx:

<Route
                    exact
                    path="/service_accounts"
                    component={ServiceAccounts}
                  />

• Go into Configurations Lists > service_accounts > Edit Icon
• Click on create service account & write a valid policy
• Click on create button, the policy should appear in the list
• Click on the delete button of the recently created policy, the policy should be deleted

[cesnietor]

I think we should put the Service Accounts in the menu as a main feature, probably below Buckets. Since Service Accounts is going to be probably the most used feature after buckets.

[cesnietor]

I'm also trying to test it, there is no permission needed to See service Accounts, but I can't see the page load. And even having admin:* is not showing also.

[bexsoft]

I'm also trying to test it, there is no permission needed to See service Accounts, but I can't see the page load. And even having admin:* is not showing also.

Just fixed this issue, page is now fully working

[cesnietor]

LGTM