Using Address and Credit Card struct

[jyotigautam]

Following a proper format for Address and Credit Card using structs to maintain the consistency.

[oyeb]

Notice that you have 2 commits (8bc5b77, 830da82) that introduce exactly the same changes. This happened because you pulled this branch back into your local, instead of doing a force push. Could you please clean up your local and do a force push?
You've also made seemingly unintentional edits to stripe.ex.

[chandradot99]

@jyotigautam you have changed stripe.ex unnecessarily, there will be no breaking changes this time, but before committing code you should check that you are not adding any other unnecessary files.

[chandradot99]

no need to separate email in three different lines, you can do something like this

  [email: opts[:email]]
   ++ card_params(payment)
   ++ address_params(opts[:billing_address])

[chandradot99]

@jyotigautam you are assigning a value for card whereas you are declaring module attribute for address, since these examples are going to be executed in iex, module attribute will not work. change it to below throughout the examples.

address = %Address{
 +    street1: "123 Main",
 +    street2: "Suite 100",
 +    city: "New York",
 +    region: "NY",
 +    country: "US",
 +    postal_code: "11111",
 +    phone: "(555)555-5555"
 +  }

[jyotigautam]

Have assigned this address struct to a variable instead of using it as a module attribute as you said.

[pkrawat1]

@jyotigautam coverage decreased please add necessary test cases.

[jyotigautam]

@pkrawat1 same functions were added twice, that's why the coverage decreased.I have amended the code.