Improve contributing and dev process

[longquanzheng]

What changed?

1. Use docker compose for all dependencies
2. Update Contributing guide

Why?
The original way of running local Cassandra is very tedious. And after upgrading to Java 9, local Cassandra is mostly broken. See https://stackoverflow.com/questions/48844252/cassandra-start-error-with-threadprioritypolicy-42
The best/stable way to run Cassandra is docker compose.

How did you test it?
Local tested the whole process

Potential risks
No

Release notes

Documentation Changes

[coveralls]

Pull Request Test Coverage Report for Build 1da67f46-0847-4bdd-8859-929b465aa817

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 18 unchanged lines in 5 files lost coverage.
• Overall coverage increased (+0.04%) to 56.853%

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Files with Coverage Reduction	New Missed Lines	%
service/history/execution/mutable_state_task_refresher.go	1	74.4%
common/task/fifoTaskScheduler.go	2	87.63%
service/matching/taskListManager.go	2	74.09%
service/history/queue/timer_queue_processor_base.go	4	78.78%
common/persistence/nosql/nosqlExecutionStore.go	9	57.52%

Totals
Change from base Build 45ffe188-c9b2-42ba-bd88-da4a31e817a0:	0.04%
Covered Lines:	78076
Relevant Lines:	137329

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💛 - Coveralls