Inspect prints the metadata in yaml format

[rumpl]

- What I did

Made inspect print the application metadata in yaml format.

- How to verify it

Build a new application and then inspect it with --pretty format.

- A picture of a cute animal (not mandatory but encouraged)

[silvin-lubecki]

LGTM

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@fc64d21). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master     #690   +/-   ##
=========================================
  Coverage          ?   71.74%           
=========================================
  Files             ?       56           
  Lines             ?     2884           
  Branches          ?        0           
=========================================
  Hits              ?     2069           
  Misses            ?      551           
  Partials          ?      264

Impacted Files	Coverage Δ
internal/inspect/inspect.go	87.87% <100%> (ø)

---

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 fc64d21...940a2e4. Read the comment docs.