New community resource PSHOrg_cNetAdapterName for Windows Server 2008 R2 and later

- New DSC resource cNetAdapterName (PSHOrg_cNetAdapterName) using
CIM/WMI class Win32_NetworkAdapter for backward-compatibility with Windows Server 2008 R2
- Added resource root module with helper function "Convert-MacAddress"
- cNetworking.psd1 - Assigned new GUID to avoid conflict with xNetworking if the GUID is being used in the future
- cNetworking.psd1 - Modified Author, CompanyName and Copyright to "PowerShell.org
Community"
- cNetworking.psd1 - Removed wildcard FunctionsToExport, CmdletsToExport
- cNetworking.psd1 - Removed CLRVersion because I think the minimum PowerShell engine version should be sufficient as check