refactor: fabric connection and fabric port schema updates (#548)

* Consolidated+Migrated Fabric Connection Schema to Fabric Connection
Resource
* Refactored Common Schema Elements to `internal` Package
* Consolidated+Migrated Fabric Port Schema to Fabric Port Resource
* Updated Service Profile, Routing Protocol, and Cloud Router Schema to
use Common elements
* Updated Out of Date Documentation to match current changes
* Moved mapping helpers to their corresponding resource + common mapping
helpers to `internal` package

docs/data-sources/equinix_fabric_cloud_router.md

@@ -23,17 +23,17 @@ data "equinix_fabric_cloud_router" "cloud_router_data_name" {
 <!-- schema generated by tfplugindocs -->
 ## Schema
 
-### Optional
+### Required
 
 - `uuid` (String) Equinix-assigned Fabric Cloud Router identifier
 
 ### Read-Only
 
 - `account` (Set of Object) Customer account information that is associated with this Fabric Cloud Router (see [below for nested schema](#nestedatt--account))
-- `bgp_ipv4_routes_count` (Number)
-- `bgp_ipv6_routes_count` (Number)
+- `bgp_ipv4_routes_count` (Number) Access point used and maximum number of IPv4 BGP routes
+- `bgp_ipv6_routes_count` (Number) Access point used and maximum number of IPv6 BGP routes
 - `change_log` (Set of Object) Captures Fabric Cloud Router lifecycle change information (see [below for nested schema](#nestedatt--change_log))
-- `connections_count` (Number)
+- `connections_count` (Number) Number of connections associated with this Access point
 - `description` (String) Customer-provided Fabric Cloud Router description
 - `equinix_asn` (Number) Equinix ASN
 - `href` (String) Fabric Cloud Router URI information
@@ -43,7 +43,7 @@ data "equinix_fabric_cloud_router" "cloud_router_data_name" {
 - `notifications` (List of Object) Preferences for notifications on Fabric Cloud Router configuration or status changes (see [below for nested schema](#nestedatt--notifications))
 - `order` (Set of Object) Order information related to this Fabric Cloud Router (see [below for nested schema](#nestedatt--order))
 - `package` (Set of Object) Fabric Cloud Router package information (see [below for nested schema](#nestedatt--package))
-- `project` (Block Set) Project information (see [below for nested schema](#nestedblock--project))
+- `project` (Set of Object) Project information (see [below for nested schema](#nestedatt--project))
 - `state` (String) Fabric Cloud Router overall state
 - `type` (String) Defines the Fabric Cloud Router type like XF_GATEWAY
 
@@ -85,7 +85,6 @@ Read-Only:
 
 Read-Only:
 
-- `href` (String)
 - `ibx` (String)
 - `metro_code` (String)
 - `metro_name` (String)
@@ -121,12 +120,10 @@ Read-Only:
 - `code` (String)
 
 
-<a id="nestedblock--project"></a>
+<a id="nestedatt--project"></a>
 ### Nested Schema for `project`
 
 Read-Only:
 
-- `href` (String) Unique Resource URL
-- `project_id` (String) Project Id
-
-
+- `href` (String)
+- `project_id` (String)