feat(examples): added example to verify and create letters

[neelk07]

What: an example to verify and create letters

Why: allow customer to try out a test script that would take their csv file and generate letters for billing

Details:

• navigate to examples/verify_and_create_letters_from_csv/ folder
• run python letter.py input.csv
• fixes: https://github.com/lob/lob-api/issues/1791

@russelltaylor05 @pon @mgartner @robinjoseph08 @elnaz

[russelltaylor05]

to be consistent with the other wrappers, lets name the example directory csv_letter_mail_merge

[russelltaylor05]

Can we change this to "Bill for {name}"

[neelk07]

@russelltaylor05

I made the suggested changes, let me know if you notice anything else

[russelltaylor05]

LGTM

[elnaz]

Except now the folder name is inconsistent with the other python example folders. I would vote for /verify_and_create_letters_from_csv since it's more clear but if we stick with /csv_letter_mail_merge then we should also change the other two example folders.

[elnaz]

@neelk07 could you also update the README to mention this new example?

[neelk07]

@russelltaylor05 @elnaz @pon @mgartner

updated the READMEs

[russelltaylor05]

@elnaz @dmlittle @neelk07
Whatever you guys think is the best naming for the examples folders is fine with me. But, please work with @dmlittle to make sure the Node examples have the same names. It will be confusing to readers if I send them to a github example that has different names in different wrappers.

[elnaz]

@russelltaylor05 I agree. @dmlittle could you update the node examples folders to have the same names as the python ones?

[elnaz]

Verify and create ...

[elnaz]

nvm

[elnaz]

LGTM pending small readme header change
Good work neel!