Add common models to flytekit __init__

[wild-endeavor]

TL;DR

Add common models to flytekit init

Type

• Bug Fix
• Feature
• Plugin

Are all requirements met?

• Code completed
• Smoke tested
• Unit tests added
• Code documentation added
• Any pending items have an associated Issue

[codecov]

Codecov Report

Merging #729 (0140acb) into master (c6efe63) will not change coverage.
The diff coverage is n/a.

❗ Current head 0140acb differs from pull request most recent head ce76b69. Consider uploading reports for the commit ce76b69 to get more accurate results

@@           Coverage Diff           @@
##           master     #729   +/-   ##
=======================================
  Coverage   85.78%   85.78%           
=======================================
  Files         362      362           
  Lines       30007    30007           
  Branches     2444     2444           
=======================================
  Hits        25743    25743           
  Misses       3621     3621           
  Partials      643      643           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c6efe63...ce76b69. Read the comment docs.