Create codeql-analysis.yml

[yyoshiki41]

This change is 

[codecov]

Codecov Report

Merging #18 into master will decrease coverage by 4.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #18      +/-   ##
==========================================
- Coverage   63.52%   59.44%   -4.09%     
==========================================
  Files          12       12              
  Lines         414      360      -54     
==========================================
- Hits          263      214      -49     
+ Misses        110      106       -4     
+ Partials       41       40       -1     

Impacted Files	Coverage Δ
timeshift.go	25.00% <0.00%> (-6.82%)	⬇️
m3u8.go	60.00% <0.00%> (-6.67%)	⬇️
internal/m3u8/m3u8.go	60.00% <0.00%> (-6.67%)	⬇️
area.go	73.33% <0.00%> (-5.62%)	⬇️
testing.go	81.81% <0.00%> (-4.85%)	⬇️
login.go	53.65% <0.00%> (-4.12%)	⬇️
internal/util/time.go	84.61% <0.00%> (-3.62%)	⬇️
stream.go	73.33% <0.00%> (-3.14%)	⬇️
client.go	80.00% <0.00%> (-3.06%)	⬇️
player.go	72.09% <0.00%> (-2.38%)	⬇️
... and 2 more

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