Resolve import issue with route policy when configured with a single community list

[seconroy]

Description

Add parameters to configure a single community list, depends on PR #512
Resolves issue #513

Types of Changes

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to change)
• Build/CI change
• Code quality improvement/refactoring/documentation (no functional changes)

Checklist

• My code follows the code style of this project
• I have added tests to cover my changes
• All new and existing tests pass locally

[koval4ukav]

With the PR changes, the single community list configuration as well as import working as expected. (requires TF module update of relevant attribute)

# module.sdwan.sdwan_route_policy_definition.route_policy_definition["NS_Block_1"] will be imported
    resource "sdwan_route_policy_definition" "route_policy_definition" {
        default_action = "reject"
        description    = "NS_Block_1"
        id             = "494abc29-5025-4425-9e24-1228602e11a6"
        name           = "NS_Block_1"
        sequences      = [
...
            {
                base_action   = "accept"
                id            = 21
                ip_type       = "ipv4"
                match_entries = [
                    {
                        community_list_id         = "590d00c6-19b6-4764-99f6-7b7b16d51ef4"
                        community_list_match_flag = "or"
                        community_list_version    = 0
                        type                      = "community"
                    },
                ]
                name          = "Route"
            },
        ]
        type           = "vedgeRoute"
        version        = 0
    }

  # module.sdwan.sdwan_route_policy_definition.route_policy_definition["NS_Block_2"] will be imported
    resource "sdwan_route_policy_definition" "route_policy_definition" {
        default_action = "reject"
        description    = "NS_Block_2"
        id             = "ae6f5bb8-e718-4d2d-a65b-a0eae4a0b401"
        name           = "NS_Block_2"
        sequences      = [
...
            },
            {
                base_action   = "accept"
                id            = 21
                ip_type       = "ipv4"
                match_entries = [
                    {
                        community_list_ids        = [
                            "590d00c6-19b6-4764-99f6-7b7b16d51ef4",
                            "f8cf877e-fa24-459b-a7f7-ed5aa3429ac6",
                        ]
                        community_list_match_flag = "or"
                        community_list_versions   = [
                            "0",
                            "0",
                        ]
                        type                      = "advancedCommunity"
                    },
                ]
                name          = "Route"
            },
        ]
        type           = "vedgeRoute"
        version        = 0
    }