Feat/dashpay contract

[Alex-Werner]

Issue being fixed or feature implemented

This PR adds dashpay contract into the SDK defaults app under the alias dashpay. Users wil be able to use documents fetching of type dashpay.*. Over previous PR.

What was done?

• added dashpay contract as default app

How Has This Been Tested?

Todo

Breaking Changes

N/A

Checklist:

• [X] I have performed a self-review of my own code
• [X] I have commented my code, particularly in hard-to-understand areas
• [ ] I have added or updated relevant unit/integration/functional/e2e tests
• [ ] I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• [ ] I have assigned this pull request to a milestone

[thephez]

Closing since this has been handled now. Most recently in #240. Feel free to re-open if there is a reason to @Alex-Werner