feat: filedef activity file add sports and update its sorting

[muktihari]

• Add sports messages in Activity File. FIT files produced by Garmin devices typically has this message, and it can be multiple sports messages such as when doing a Triathlon.
• Manually put messages that, we know upfront, have no timestamp at the beginning of the resulting messages, we don't need to include it to be sorted. This will save a bit of resource and time.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.94%. Comparing base (b8c1b00) to head (af2ec71).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #464   +/-   ##
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  Coverage   99.94%   99.94%           
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  Files          42       42           
  Lines        3697     3710   +13     
=======================================
+ Hits         3695     3708   +13     
  Misses          2        2           

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