text: Title: [FEA] Quickly compute multiple algorithms
  Body: **Is your feature request related to a problem? Please describe.**
  
  I'll often write:
  
  ```python
          g = g.compute_cugraph('weakly_connected_components')
          g = g.compute_cugraph('pagerank')
          g = g.compute_cugraph('betweenness_centrality')
  ```
  
  We ought to have short-hands!
  
  **Describe the solution you'd like**
  
  Some ideas:
  
  * `g.compute_cugraph(['pagerank', 'betweenness_centrality'])`
  *
  ```python
  g.compute_cugraph([
    ('pagerank', opts123),
    'betweenness_centrality'
  ])
  ```
  
  * `g.compute_cugraph(g.cugraph.node_labels)`
  
  **Additional context**
  
  Same likely applies to `compute_igraph()`
  
  
  