Missing integration test and codecov

[pindge]

setup docker-compose stack to perform integration test.
1. setup Dockerfile for dea-coastlines - to be done by @robbibt
2. setup docker-compose with dea-coastlines docker and postgres odc indexed database - to be done by @pindge
3. README update for test setup including how to run docker - to be done by @pindge
4. test output = expected - to be done by @pindge
5. setup codecov - to be done by @pindge

Questions need to be clarified

What odc products and minimum required datasets need to be indexed for dea-coastline test?

https://explorer.dev.dea.ga.gov.au/product/ga_ls8c_ard_3/regions/089083, https://explorer.dev.dea.ga.gov.au/product/ga_ls5t_ard_3/regions/089083,
https://explorer.dev.dea.ga.gov.au/product/ga_ls7e_ard_3/regions/089083

What kind of test output are we expecting? and how would we verify output is as expected

What command to run for docker

https://gist.github.com/robbibt/1939b55898d84dff0bd90266fbd222cb#file-coastlines-yaml-L186-L200
https://gist.github.com/robbibt/1939b55898d84dff0bd90266fbd222cb#file-coastlines-yaml-L264-L268