kvstore test with built-in docker invoke

[greg-szabo]

Please compare to #748

This is example code how we could expand our testing framework with Rust-native test prerequisites built into build.rs.

Prerequisite:

• docker daemon installed and running

Benefits:

• No additional dependencies
• Runs natively with cargo test if the endpoint is already running
• Runs natively with cargo test --features docker if the endpoint has to be set up
• Nice message during build notifying what docker image is going to be run

Disadvantages:

• The shiplift library used to manage docker is out-of-date and had to be pointed to master.

• The docker image cannot be shut down automatically at the end of the test run. docker stop kvstore-test has to be run or Tendermint will keep running in the background.

• Referenced an issue explaining the need for the change

• Updated all relevant documentation in docs

• Updated all code comments where relevant

• Wrote tests

• Updated CHANGELOG.md

[codecov-io]

Codecov Report

Merging #747 (5ce35d8) into master (4225d7f) will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #747   +/-   ##
======================================
  Coverage    43.2%   43.2%           
======================================
  Files         203     203           
  Lines       13118   13118           
  Branches     3456    3456           
======================================
  Hits         5673    5673           
  Misses       7087    7087           
  Partials      358     358           

---

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 4225d7f...5ce35d8. Read the comment docs.

[greg-szabo]

We are dropping this idea in favour of #748 .