MG-2236 - Add Constraints Service Provider

[WashingtonKK]

What type of PR is this?

This is a feature because it adds a constraint provider to magistrala.

What does this do?

This introduces a constraint provider to magistrala that reads constraints from a toml file and uses this to limit the entities created.

Which issue(s) does this PR fix/relate to?

• Resolves Feature: Service configuration #2236

Have you included tests for your changes?

Yes, I have included tests for my changes.

Did you document any new/modified feature?

Yes, I have updated the documentation for the new feature.

Notes

[arvindh123]

|-- constraints
|   |-- config
|   |   |-- configprovider.go
|--constraints.go

@WashingtonKK What do you think about this folder structure, inside pkg dir
But again it like similar to repo folder structure

[arvindh123]

|-- constraints
|   |-- config
|   |   |-- configprovider.go
|--constraints.go

@WashingtonKK What do you think about this folder structure, inside pkg dir But again it like similar to repo folder structure

In future we can add other providers

like example

|-- constraints
|   |-- config
|   |   |-- configprovider.go
|   |-- strip
|   |   |-- stripprovider.go
|--constraints.go

[WashingtonKK]

|-- constraints
|   |-- config
|   |   |-- configprovider.go
|--constraints.go

@WashingtonKK What do you think about this folder structure, inside pkg dir But again it like similar to repo folder structure

In future we can add other providers

like example

|-- constraints
|   |-- config
|   |   |-- configprovider.go
|   |-- strip
|   |   |-- stripprovider.go
|--constraints.go

@arvindh123 I think this is a good idea, since it will make it easy for us to add more providers. I will update it to that

[arvindh123]

Please try the suggetion