Implement ResolveComponent RPC for resolving a component's data and templated renderer properties

[begelundmuller]

This PR adds a ResolveComponent RPC which resolves the data (if a data resolver is configured) and the templated renderer properties (if any) for a component for a provided set of arguments.

The RPC replaces the /v1/instances/{instance_id}/components/{name}/data endpoint, which is now marked deprecated.

Proto signature:

service QueryService {
  // ResolveComponent resolves the data and renderer for a Component resource.
  rpc ResolveComponent(ResolveComponentRequest) returns (ResolveComponentResponse) {
    option (google.api.http) = {
      post: "/v1/instances/{instance_id}/queries/components/{component}/resolve",
      body: "*",
    };
  }
}

message ResolveComponentRequest {
  // Instance ID
  string instance_id = 1;
  // Component name
  string component = 2;
  // Optional args to pass to the data resolver and for resolving templating in the renderer properties
  google.protobuf.Struct args = 3;
}

message ResolveComponentResponse {
  // Schema of the resolved component data
  StructType schema = 1;
  // Resolved component data
  repeated google.protobuf.Struct data = 2;
  // Renderer properties with templating resolved for the provided args
  google.protobuf.Struct renderer_properties = 3;
}