allow branch.create to accept source hash

[ceedubs]

Is your feature request related to a problem? Please describe.

I want to quickly create a branch from a point in history.

I tried @ceedubs/exists/main> branch #oou75lskn1 testing. It didn't work and the output doesn't really make any sense to me:

@ceedubs/exists/main> branch #oou75lskn1 testing                                                                                                                                                                                              
                                                           
  ⚠️                                b
                                                                                                                                                                                                                                              
  Sorry, I wasn’t sure how to process your request:
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
    #oou75lskn1
    ^-- This is where I gave up.                                                                                                                                                                                                              
                   
                                            
    I expected ''/''''@'''"releases/"''"releases/drafts/"' and I found "#oou75lskn1".                                  
                                                                                                                       
  You can run `help branch` for more information on using `branch`.                  

I was able to work around it by first running branch testing and then reset #oou75lskn1.

Describe the solution you'd like

I would like to be able to run branch #oou75lskn1 testing or branch.create #oou75lskn1 testing to create a testing branch off of #oou75lskn1.

And then the logical next step would be to allow branch 3 testing to do the same if 3 is the numbered arg corresponding to #oou75lskn1 from a previous history command.