Introduce an optional Cache that Deployers can use when deploying remote applications

[brianoliver]

When the same application is launched multiple times on the same RemotePlatform, the deployers will typically deploy (copy) the same application binaries for each deployment into a separate temporary folder.

This is both time consuming and wasteful.

Instead Deployers should use a cache on the remote platform (by default), say in ~/.bedrock/cache to hold non SNAPSHOT files.

[brianoliver]

Reported by @brianoliver

[brianoliver]

This issue was imported from JIRA ORACLETOOLS-324

[brianoliver]

Duplicate of #320