fix: handle compressed timestamp

[muktihari]

• decoder: Compressed timestamp header message has local message type 0-3 positioned at bit 5-6 (note: normal message has local message type 0-15 positioned at bit 0-4). Bit 6 overlap with proto.MesgDefinitionMask, the only thing that differentiate them is the bit 7. So we must take bit 7 into consideration when checking the header type, is it message definition or is it message data. Since only message has value at header bit 7, we we must include proto.MesgCompressedHeaderMask to do mask, only then we can get the correct header type.
• encoder: Previous implementation of timestamp compression has a bug, where we always has timestampReference 1. It should have only been updated when Rollover Event occurs.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (1c69559) to head (90dc307).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #438   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           42        42           
  Lines         3659      3661    +2     
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+ Hits          3659      3661    +2     

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