Make replicas and counts clearer

[obierlaire]

Reports will show it in a better way:

 ------------------------------------------- ------- ---------- ------------------------ 
  resource                                    count   replicas   emissions per instance  
 ------------------------------------------- ------- ---------- ------------------------ 
  google_compute_disk.first                   1       1           0.0422 gCO2eq/h        
  google_compute_instance.first               1       1           33.5977 gCO2eq/h       
  google_compute_instance.second              1       1           0.4248 gCO2eq/h        
  google_compute_region_disk.regional-first   1       2           0.0844 gCO2eq/h        
  google_sql_database_instance.instance       1       2           2.0550 gCO2eq/h        
  google_compute_subnetwork.first                                unsupported             
  google_compute_network.vpc_network                             unsupported             
 ------------------------------------------- ------- ---------- ------------------------ 
  Total                                       7                   38.3433 gCO2eq/h