Parsing of cookie counts and prices, the most-expensive-affordable rule, the
click-and-buy loop with a check interval, adapter methods and cli option, and
the screenshot of lecture step 3 from a container run. Code review RC-016.
Closes#18Closes#19Closes#20Closes#21
Task: MIL-004#1
Task: MIL-004#2
Task: MIL-004#3
Task: MIL-004#4