[#12] rename FullContract to Contract

Description

As advised in the issue, the solution was split in two parts:

• rename Contract to ContractCode
• rename FullContract to Contract

The first part was solved by !271 (merged)

This solves the second part of the problem. Additionally FullContract's record fields have been renamed from fc*** to c*** and Full was removed from the name of the functions: convertFullContract printTypedFullContract and mapFullContractCode.

Related issue(s)

Resolves #12 (closed)

✅ Checklist for your Merge Request

Related changes (conditional)

• Tests (see short guidelines)

  • If I added new functionality, I added tests covering it.
  • If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.

• Documentation

  • I checked whether I should update the docs and did so if necessary:
    • Root README and other README.md files
    • Haddock
    • docs/
  • I updated changelog files of all affected packages released to Hackage if my changes are externally visible.

Stylistic guide (mandatory)

• My commits comply with the following policy.
• My code complies with the style guide.