(feat proxy) [beta] add support for organization role based access controls (#6112)

* track LiteLLM_OrganizationMembership

* add add_internal_user_to_organization

* add org membership to schema

* read organization membership when reading user info in auth checks

* add check for valid organization_id

* add test for test_create_new_user_in_organization

* test test_create_new_user_in_organization

* add new ADMIN role

* add test for org admins creating teams

* add test for test_org_admin_create_user_permissions

* test_org_admin_create_user_team_wrong_org_permissions

* test_org_admin_create_user_team_wrong_org_permissions

* fix organization_role_based_access_check

* fix getting user members

* fix TeamBase

* fix types used for use role

* fix type checks

* sync prisma schema

* docs - organization admins

* fix use organization_endpoints for /organization management

* add types for org member endpoints

* fix role name for org admin

* add type for member add response

* add organization/member_add

* add error handling for adding members to an org

* add nice doc string for oranization/member_add

* fix test_create_new_user_in_organization

* linting fix

* use simple route changes

* fix types

* add organization member roles

* add org admin auth checks

* add auth checks for orgs

* test for creating teams as org admin

* simplify org id usage

* fix typo

* test test_org_admin_create_user_team_wrong_org_permissions

* fix type check issue

* code quality fix

* fix schema.prisma

docs/my-website/sidebars.js

@@ -78,7 +78,12 @@ const sidebars = {
         {
           type: "category",
           label: "Admin UI",
-          items: ["proxy/ui", "proxy/self_serve", "proxy/custom_sso"],
+          items: [
+            "proxy/ui", 
+            "proxy/self_serve", 
+            "proxy/access_control",
+            "proxy/custom_sso"
+          ],
         },
         {
           type: "category",