Check hash of application to deploy before and after deployment

[Cosaquee]

Provider for jboss_deploy type should take into consideration the content hash and compare it to the calculated hash of target file to be deployed. If both hashes do not match, provider should redeploy the artifact with target one and change should be reported as different content, hash changed from '{md5}59381b178aeeb198ef8d69e85e41702aaec5d80' to '{md5}e6d07fd0403ea06c6531155d80e1614b'

Here are the example CLI command with output:

[domain@localhost:9999 /] /deployment=sample-app:read-resource()
{
    "outcome" => "success",
    "result" => {
        "content" => [{"hash" => bytes {
            0x59, 0x38, 0x1b, 0x17, 0x8a, 0xee, 0xb1, 0x98,
            0xef, 0x8d, 0x69, 0xe8, 0x5e, 0x41, 0x70, 0x2a,
            0x0a, 0xec, 0x5d, 0x80
        }}],
        "name" => "sample-app",
        "runtime-name" => "sample-app"
    }
}

Notice that you can read those byte in Ruby like that:

bytes = [0x59, 0x38, 0x1b, 0x17, 0x8a, 0xee, 0xb1, 0x98, 0xef, 0x8d, 0x69, 0xe8, 0x5e, 0x41, 0x70, 0x2a, 0x0a, 0xec, 0x5d, 0x80]              
bytes.map {|b| b.to_s(16) }.join('')
=> "59381b178aeeb198ef8d69e85e41702aaec5d80"