### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

It would be great if localstack supported AWS Resource Access Manager. This would allow for testing multi-account AWS Transit Gateway setups, for example.

### 🧑‍💻 Implementation

_No response_

### Anything else?

Related: https://github.com/localstack/localstack/issues/7041
from localstack import config
from localstack.aws.forwarder import HttpFallbackDispatcher
from localstack.services.moto import MotoFallbackDispatcher
from localstack.services.plugins import Service, aws_provider
@aws_provider()
def acm():
    from localstack.services.acm.provider import AcmProvider
    from localstack.services.moto import MotoFallbackDispatcher
    provider = AcmProvider()
    return Service.for_provider(provider, dispatch_table_factory=MotoFallbackDispatcher)
@aws_provider(api="apigateway")
def apigateway():
    from localstack.services.apigateway.provider import ApigatewayProvider
    provider = ApigatewayProvider()
    return Service.for_provider(provider, dispatch_table_factory=MotoFallbackDispatcher)
@aws_provider()
def cloudformation():
    from localstack.services.cloudformation.provider import CloudformationProvider
    provider = CloudformationProvider()
    return Service.for_provider(provider)
@aws_provider(api="config")
def awsconfig():
    from localstack.services.configservice.provider import ConfigProvider
    provider = ConfigProvider()
    return Service.for_provider(provider, dispatch_table_factory=MotoFallbackDispatcher)
@aws_provider()
def cloudwatch():