Issue:
feat(user_roles): Start inserting V2 user_roles in DB

Currently we only have V1 user_roles data. These roles are at merchant level.

To start supporting profile level dashboard, we should start inserting V2 user_roles which will have profile context as well.

Resolution:
<think>
PR Context:
- Title: feat(user_role): Insert V2 user_roles
- Merged: 2024-08-29T15:07:12Z
- Files changed: 7 files
- Commits: 9 commits

Implementation approach:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [x] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
- From this PR, we will start inserting V2 user_roles.

### Additional Changes

- [ ] This PR modifies the API contract
- [x] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables


</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** feat(user_role): Insert V2 user_roles (#5607)
Files to modify:


**crates/diesel_models/src/query/user_role.rs**
  Add:
    - function: pub::insert_multiple_user_roles

**crates/router/src/core/user.rs**
  Modify existing code

**crates/router/src/db/kafka_store.rs**
  Modify existing code

**crates/router/src/db/user_role.rs**
  Remove:
    - struct: pub::ListUserRolesByOrgIdPayload
  Add:
    - function: private::convert_to_vec
    - struct: pub::ListUserRolesByOrgIdPayload
    - enum: pub::InsertUserRolePayload
    - impl: impl InsertUserRolePayload

**crates/router/src/types/domain/user.rs**
  Add:
    - function: pub::get_no_level_user_role
    - function: pub::add_entity
    - function: private::convert_to_new_v1_role
    - function: private::convert_to_new_v2_role
    - function: private::insert_v1_and_v2_in_db_and_get_v1
    - function: pub::insert_in_v1
    - function: pub::insert_in_v2
    - function: pub::insert_in_v1_and_v2
    - function: pub::insert_in_v1_and_v2
    - function: pub::insert_in_v1_and_v2
    - function: pub::insert_in_v2
    - struct: pub::NoLevel
    - struct: pub::OrganizationLevel
    - struct: pub::MerchantLevel
    - struct: pub::ProfileLevel
    - struct: pub::InternalLevel
    - struct: pub::NewUserRole
    - struct: pub::EntityInfo
    - impl: impl NewUserRole<NoLevel>
    - impl: impl NewUserRole<E>
    - impl: impl NewUserRole<OrganizationLevel>
    - impl: impl NewUserRole<MerchantLevel>
    - impl: impl NewUserRole<InternalLevel>
    - impl: impl NewUserRole<ProfileLevel>