More intelligent initial resource suggestions

**Is your feature request related to a problem? Please describe.**
When beginning auto completion for a resource type in a resource declaration, it would be nice iv VS Code could use the name I've given the resource to more intelligently show suggestions

**Describe the solution you'd like**
In the following example I've named the resource `containerGroup`, when auto completing the resource type it would be nice if Code completion listed `Microsoft.ContainerInstance/containerGroups` as the first suggestion.


Reproduce the resource declaration autocomplete scenario in VS Code using the named resource `containerGroup`. Investigate the completion entry point and determine how suggestions are ranked; done means `Microsoft.ContainerInstance/containerGroups` appears first for that name.

Written by the indexing model from the issue text.