GH-1354 Added version header to Metric Message

[olegz]

No description provided.

[sabbyanandan]

Looks pretty good! This should be enough for the Collector.

@tzolov: Do you have any other thoughts or improvements to this?

[codecov-io]

Codecov Report

Merging #1356 into master will decrease coverage by 0.44%.
The diff coverage is 0%.

@@             Coverage Diff              @@
##             master    #1356      +/-   ##
============================================
- Coverage     61.68%   61.23%   -0.45%     
+ Complexity      825      820       -5     
============================================
  Files           136      136              
  Lines          3933     3934       +1     
  Branches        550      550              
============================================
- Hits           2426     2409      -17     
- Misses         1229     1251      +22     
+ Partials        278      274       -4

Impacted Files	Coverage Δ	Complexity Δ
...ter/DefaultDestinationPublishingMeterRegistry.java	0% <0%> (ø)	0 <0> (ø)	⬇️
...gframework/cloud/stream/binder/DefaultBinding.java	26.66% <0%> (-6.67%)	4% <0%> (-3%)
...ud/stream/binder/AbstractMessageChannelBinder.java	42.66% <0%> (-4.78%)	22% <0%> (-2%)

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[olegz]

Had a quick discussion with @tzolov and given that SCDF has the higher level concept of a Stream (implemented by SCSt) will change the header name to STREAM_CLOUD_STREAM_VERSION to be more explicit and clear as to what version is represented by this header.