ACAS-770: Additional project grants configuration

[brianbolt]

Description

• Add new configuration server.projects.additionalProjectGrants which confers access to an additional list of projects if the user has access to the project in the key of the configuration.

Example:

server.projects.additionalProjectGrants = {"PROJ-00000001": ["PROJ-00000002", "PROJ-00000003"]}

This would grant access to PROJ-00000002 and PROJ-00000003 to users with access to PROJ-00000001

Related Issue

ACAS-770

How Has This Been Tested?

Test1) Basic test

• Patched the code change onto a server and granted myself only access to PROJ-00000001 through a CustomerSpecificServerFunction configuration.
• I set this config:
  server.projects.additionalProjectGrants = {"PROJ-00000001": ["PROJ-00000002"]}

Result:
I could access both "PROJ-00000001" and "PROJ-00000002"

Test2) Same as test 1 but also verify this works when using the projects.filterList configuration

• I added this config in addition to those in Test1
  server.projects.filterList = ["PROJ-00000001"]

Result:
I could no longer access "PROJ-00000001" but could still access "PROJ-00000002"

[bffrost]

LGTM. This seems like as straightforward as possible of an implementation.